In the event of a serious malfunction in the OS, it is not always possible to turn it on even using safe mode. In such cases, running Windows 7 from a flash drive without installation will help.
This advice may seem strange to a beginner, but experienced administrators always have such a drive with them. The bottom line is that Windows 7 will boot from a USB flash drive onto which the OS image was previously recorded, and not hard drive, as usual. Such a system has default settings so that unwanted changes will not be reflected when it starts.
Preparing for launch
How can a regular user run Windows 7 from a flash drive? To do this you need to have bootable USB flash drive, at least one free USB port on your device and a basic knowledge of English or an online translator at hand. To create a LiveUSB, it is advisable to select a flash drive that has previously been used on this PC, otherwise you may need to install a driver.
The following procedure is suggested:
1. Insert the drive into the device that is turned off; in this case, the LED of the flash drive should light up only when the computer starts.
2. You need to go to BIOS menu or a separate Boot Menu, if available. To do this, when the logo appears, you must press, depending on the manufacturer motherboard, F2, Delete, Esc or other key. Often, a hint will appear at the bottom or top of the screen.
3. Most are old BIOS versions do not support the mouse, control is done using arrows. Next, you need to go to the Boot Menu, Boot Settings or simply Boot tab, it is responsible for the boot order. For start windows 7 from a flash drive without installation, you must set Flash Device first.
4. To save you need to use F10, then Enter. It is worth noting that changes in the launch order can be either permanent, in which case you need to repeat the previous two points and return everything to its place, or act within the limits of only the current start.
5. After this, the Windows welcome screen should appear. You may need to enter an activation key; if Windows was preinstalled when you purchased the PC, it is in the documentation for the device. You should not try to log in there using your login, because the OS does not know it.
Possible mistakes
The steps described above will be enough to launch Windows 7 from a flash drive in almost all cases. When everything went well, you can start diagnosing and then troubleshooting. If the result is still negative, then write down the error code displayed on the screen.
When nothing is displayed on the monitor, the reason is most likely incorrect settings launch (item 2-4) or an incorrectly recorded image.
If, after setting the boot order, the OS is still read from the hard drive, then perhaps the changes were not saved or the computer does not see the flash drive, then you need to remove and reinsert the device, rebooting the computer, or repeat everything with a new drive.
GadgetOk.ru
WinToUSB: a tool to install and run windows 7 from a USB drive
Installing and running Windows 8/8.1 from a USB drive is relatively easy, which cannot be said about Windows 7. Unlike Windows 8/8.1, Windows 7 does not include the Windows To Go function, which allows you to special effort install and run corporate versions of Windows 8/8.1 from USB flash drives.
On the Internet you can find many step by step instructions about installing windows 7 on USB drives using various third-party utilities. Today I want to introduce you to another wonderful and, perhaps, the best tool to install windows 7 on USB.
We'll talk about WinToUSB. It is a free and easy to use program that allows you to easily install Vista, windows 7, windows 8 and windows server 2008 R2 to USB disk. You only need to make a few mouse clicks. Moreover, WinToUSB can be used by professional users windows editions 8/8.1, in which, as in the case of Windows 7, the above-mentioned windows function To Go.
WinToUSB supports both USB flash drives and external hard disks. Another advantage of WinToUSB is that you don't have to download and install a package automatic installation windows (WAIK) to use this tool. Moreover, it is fully compatible with MBR and GPT disks.
To install an operating system on USB, you must have a windows ISO image or installation DVD and, of course, a USB disk. It is recommended to use a drive with a capacity of at least 16 GB.
Please note: Since Microsoft did not provide an option for installing Windows 7 on a USB, you may not be able to run Windows 7 from a USB flash drive on all computers.
How to use WinToUSB
Download installation file WinToUSB (link at the end of the post), install and run the program. Next, click on the button located to the right of the “ISO File” field, go to the Windows ISO file and select it. If you want to use the installation DVD rather than a disk image, insert it into your computer's DVD drive, then in WinToUSB click on the large icon optical drive and choose yours installation disk in the “CD/DVD” field.
Now click “Next”, select your USB disk in the "Please select the destination disk" field and click "Next" to begin windows installation. And make sure there is no USB important information, because the program will offer to format it.
During my test, the program took about an hour to install Windows 7 Ultimate. Perhaps in your case this process will complete faster, but it all depends on the capabilities of your computer and the speed of the USB drive.
The tool is compatible with all latest versions windows, including windows 7, windows 8, windows 8 and windows 8.1. I tested it on Windows 8.1 Update 1 and can confirm that the program works flawlessly.
Download WinToUSB
windowsTips.ru
How to run windows from a flash drive without installation
For almost any modern OS, you can create a so-called live image on a flash drive - that is, the entire system in an almost installed form will be stored on a flash drive, and when such a flash drive is connected to a PC, this system can be launched and worked with it in the same way as with installed on HDD. The downside is that the first launch is quite long, and for comfortable operation you need a USB 3.0 flash drive with a capacity of at least 16 GB and read/write speeds of at least 20-30 MB/s. Why is this necessary? For example, to quickly deploy a workplace, instead of carrying a laptop with you, you can limit yourself to a flash drive. This flash drive can also help if Windows installed on the device does not start. In order to create a live image, we need any windows image 10 (read how to get it here) and the Rufus program (you can download it for free on the official website). Now we connect the USB flash drive to the computer, open Rufus, select file system NTFS, in the “Create boot disk” menu, select the ISO image, and just below select windows To Go:
That's it, now click Start and wait for the image to be copied to the flash drive. You can also transfer the necessary portable versions of programs to it. www.iguides.ru
How to run windows from a flash drive?
Admin 9.10.2013 - 11:10 Workshop
Microsoft Corporation has been developing and improving operating systems for a long time, but so far not a single distribution has officially appeared that could fully work with external device on any computer. No matter how hard you try to protect your computer from breakdowns or virus infection, sometimes critical situations occur when the installed operating system can no longer function normally and stably, and you need your files and information that remained in the working folders along with the OS. This is why emergency boot disks, or windows PE, were created.
Good to know! In order to boot such an operating system from external media information, you must first complete the following steps:
- Make the device bootable by assigning boot sectors to it;
- Pre-download and correctly port Windows PE to a removable device;
- If necessary, add drivers to the image (this especially applies to SATA drivers).
It should be remembered that the operating speed operating system, which is loaded from an external device, is much slower. This is due to the fact that the performance depends on the operating speed of the device itself, as well as the operating frequency of the bus through which the signal travels from/to the device. If you start the OS with USB devices, then the speed drops by about ten times (The average speed of loading information from a flash drive is 10 MB/s, the average speed HDD operation SATA 100-120 MB/s).
How does the process of loading and starting OS PE occur?
After pressing the computer's power button, the devices are polled, after which their readiness is checked, and an attempt to boot begins according to the priority list, which is stored in the BIOS settings. The first step is to read the boot sectors, which store the addresses where the boot loader is located to run Windows PE. After that in RAM The computer begins to load a pre-installed system image. It is worth noting that all files and settings that occur while working with the OS will be lost the next time you start it.
How to configure the process of loading Windows PE from a flash drive?
There are currently two types of BIOS. The old one is typical and simple, which is similar to MSDOS and contains only menu items that can only be navigated using the keyboard. The new one is UEFI, it is significantly different in both appearance, and in terms of functionality. In UEFI, you can control and select all settings using the mouse and keyboard.
Organization of booting in UEFI
If possible, you can simply drag the mouse pointer to the first place required device, thus changing the loading order. The classic download method also works:
- Put Boot from USB or the name of your flash drive first.
- Start your computer.
Boot organization in a typical BIOS
- Connect the USB device before starting the computer.
- Go to the BIOS menu in the section " Boot Device Priority" (Buttons Del, F2, F12).
- Put Boot from USB first (sometimes defined as USB HDD, or in the priority hard drive settings you need to put a USB flash drive) or the name of your flash drive.
- Save your changes before exiting.
- Start your computer.
Alternative download method
This method is used if you can go to the bootloader menu separately, explicitly specifying the boot devices for it.
- When you boot your computer, you need to activate the Boot Menu (there may be F12, F8, F10 buttons).
- Specify USB Flash as the primary device.
There are just a few problems that newbies face. And one of them is setting up the BIOS for Windows installations from a flash drive. This is the first step where it all begins, and this is where almost everyone stumbles.
The problem is that there are different versions BIOS. And, having studied the instructions on how to enable booting from a flash drive in the BIOS, a beginner may still not be able to cope. And all because it simply has the wrong BIOS version, there is no such line as in the screenshot and, accordingly, nothing works.
It doesn't matter what brand of laptop or computer you have. The version of the operating system (Windows 10, 8, 7 or XP) also does not matter. Only the BIOS version is important. And the easiest way to find out about this is by running it.
Before entering the BIOS settings, you need to insert a bootable USB flash drive with the installation image into the USB port. The main thing here is to write it down correctly. Otherwise it simply won't load.
After that, restart your PC or laptop and constantly click Delete button or F2 until the BIOS window opens. The button may differ depending on the brand of laptop or motherboard on the computer, so see the hint on the first black screen.
Then the BIOS is configured.
Award BIOS setup
How can you tell if you have an Award BIOS? From the screenshot below:
If you have the same blue screen, then this is an Award. This option is most often found on PCs.
Control in the BIOS is carried out only using the keyboard - arrows and corresponding buttons (their list is usually indicated at the bottom of the screen).
Before you set the BIOS to boot from USB, you need to check that it is enabled (otherwise the USB flash drive simply will not appear). For this:
The instructions are as follows:
In the screenshot above, the HDD drive is in 1st place, and the USB flash drive is in second place. She needs to be lifted upstairs. As you can see from the prompts at the bottom of the screen, you can set the boot priority in the BIOS using the + and – buttons (plus and minus). Select the USB flash drive and press the plus sign - it should move to the first line. Next, press Esc to go back.
Then highlight the “First Boot Device” item, press Enter and select “USB-HDD”. Press the Esc button again. To exit the BIOS, click the F10 button and then Esc (Save and Exit).
Setting up AMI BIOS
AMI BIOS looks like this:
And most often it is found on laptops. Again, you first need to make sure that the USB controller is enabled. For this:
Now let's look at how to boot a flash drive through BIOS on a laptop:
Sometimes, to change the boot priority of devices (put the flash drive in 1st place), you need to press other buttons. This can be not only + and - (plus/minus), but also F6/F7, etc. Focus on the tooltips, which tell you what a particular button does (this small instruction is always located either on the right or at the bottom).
Setting up Phoenix-Award BIOS
Phoenix-Award looks like this:
This is a rare (more precisely, old) version, but still, for the full picture, let’s look at it through the Phoenix-Award BIOS.
First, go to the “Peripherals” tab and make sure that the first two items are set to “Enabled”. If necessary, set what you need.
After that, go to the “Exit” tab (in top menu) and select the “Save & Exit” line to exit the BIOS.
Setting up BIOS UEFI
BIOS UEFI is a new and improved version of the old BIOS. It has a user-friendly interface, so setting up the BIOS to install Windows is very simple here.
All you need is to find the USB device icon, use the mouse to move it to the 1st place, and then click the “Exit” item (in the right corner) with the mouse. And don't forget to save your settings!
This is the simplest way to boot from a flash drive via UEFI BIOS. Undoubtedly, this method is the simplest and most understandable. Actually, this is precisely why the new graphical interface was developed.
When your PC or laptop reboots for the first time during the Windows installation process, you need to go into the BIOS again and restore the previous settings. That is, put the HDD drive in first place, and lower the flash drive into second or third.
Or when, after a reboot, a black screen appears with the line “Press any key...” (“Press any button”), do nothing.
Otherwise, Windows will start installing from the very beginning. And you can walk in circles like this for hours.
Once again: during the installation process, after the first reboot, either go into the BIOS and return all the previous settings, or simply do not press anything. Alternatively, you can simply remove the flash drive from the USB port (but only when the PC or laptop reboots).
We remind you that attempts to repeat the author’s actions may lead to loss of warranty on the equipment and even to its failure. The material is provided for informational purposes only. If you are going to reproduce the steps described below, we strongly advise you to carefully read the article to the end at least once. The editors of 3DNews do not bear any responsibility for any possible consequences.
During operation, the utility deploys the OS image (in fact, it stupidly unpacks the archive) directly to removable storage. This will turn out much faster, but upon first boot you will have to carry out the standard system setup procedure: select language settings, time zone, create users, and so on. And this is a very small price to pay for speed.
When you launch PWBoot (with administrator rights, of course), you will be prompted to either install a clean OS on a USB drive, or patch it already installed system, if you are somehow going to transfer it to an external drive. You will also have to “roll” the patch after installing service packs and, possibly, some Windows updates. Working with the program is incredibly simple, so there’s almost nothing to tell. Nevertheless, there are still a couple of nuances.
Firstly, PWBoot stubbornly refuses to work with Cyrillic. If your Windows 7 installation image supports the installation of several OS editions at once, then you need to select the one you need. How to do it? Using the ImageX utility (see above), launched with the info parameter and specifying the path to the wim file.
imagex /info x:\path\to\install.wim
In the command output, look for the Image Index item and the version description that follows it. In PWBoot, the versions in the selection list appear in the same order as they appear in the command output.
Secondly, there are two installation options to choose from - directly to an external drive (with its mandatory formatting) or to virtual disk VHD format. The second option is much more interesting, but, unlike the first, it definitely requires Windows 7 Ultimate or Enterprise. More precisely, these editions support booting from VHD. In fact, there will be only one file on the disk in which all your work will take place. At the same time, in the OS loaded from the VHD, the physical disk will also be visible. Interestingly, the speed of the system inside the VHD is almost the same as when working directly from the drive.
In general, using VHD provides a lot of advantages. Firstly, any self-respecting person can work with this format. virtual machine, and its support is built right into Windows 7. You can regular means create, edit, mount VHD disks and work with differential images (in fact, diff for an entire disk). This gives rise to such opportunities as the presence of several Windows installations on one logical volume, easy rollback of changes in the system, convenience and speed of OS deployment on many PCs at once, and so on.
Let's return to PWBoot. At the next stage, you need to specify the location and name of the future VHD container. Naturally, it must be on an external USB drive. Please note that the disk must have an NTFS file system (FAT32 is not suitable due to file size restrictions) and sufficient free space. The program itself will offer to make a disk of a minimum size, but it is better to allocate as much as you need for software, documents and everything else. A VHD disk can be made dynamic (expandable) by checking the appropriate box. That is, physically it will occupy exactly as much information as it contains. In general, you can enable this option to save space, but at the same time lose a little in performance.
All that remains is to select the disk where the bootloader will be installed (that is, an external USB drive), check the Update bootcode and Add boot entry to BCD checkboxes, change the description of the boot menu item if desired, and click Install. That's it, the program will perform further installation steps itself. This usually takes no more than ten minutes, but a lot depends on the speed of the USB drive itself.
After installation, it is advisable to lighten the system a little - remove unnecessary components, disable non-critical services, turn off hard drive indexing, and generally try to avoid any operations associated with a heavy load on the drive. It is also useful to defragment the external drive by connecting it to another system. The problem with the paging file also remains unresolved - you can use the DiskMod driver to create it on a USB drive, you can abandon it altogether, but it’s better to manually set its location on the normal HDD of the machine on which ours is running portable Windows 7.
Volume C: is an HD container that is physically located on volume E:
Finally, it is worth mentioning an interesting development called VBoot. It is a bootloader based on GRUB, but with support for direct booting from VHDs. And it doesn't have to be Windows. For example, on the website there is ready-made assemblies Ubuntu. In general, ready and convenient solution, but, of course, it’s paid - from $79 per license. By the way, Windows 8 will have a built-in ability to transfer your entire work environment to a USB drive and boot directly from it. In the meantime, you will have to be content with the above method. Good luck with your installation!
Sometimes you need to boot a computer with a damaged operating system in order to get files from system disk and reinstall Windows. Most of the flash drives offered, unfortunately, do not work very adequately, for example they fall into a blue screen, etc. This flash drive does not pretend to be a full-fledged operating system, but as practice has shown, Windows XP boots from it on almost any hardware that supports booting from USB devices.
In order for the disk to be visible, it must work in IDE mode, if you have AHCI mode, then it needs to be at least temporarily changed to IDE.
(42MB) - A simple bootable USB flash drive with Windows XP. Allows you to extract files if your main system does not boot. It has a built-in GHost that allows you to make disk backups or cloning. There are problems with launching other programs and antiviruses... But it is simple and very unpretentious to hardware, and also has a microscopic size.
Due to the enormous popularity of this article, I offer another flash drive.
or download in parts - There are many differences. This flash drive contains a lot of utilities for restoring your computer. You can run your own programs, for example, the latest antiviruses. It is also possible to install drivers for your equipment, configure network connections, editing the registry, recovering information from a hard drive, utilities for cloning and backing up data, etc. Tested on computers ranging from Pentium generations 4 and higher, as well as on a couple of netbooks. To run, you need 512MB of RAM and a flash drive of at least 1GB. Unpacking to a flash drive is completely similar to that described below, only the image name has changed to mega_flash.gho. If possible, write in the comments about the results of use. If this flash drive does not boot, then the treatment recipe is described at the very end of the article (Missing error MBR Helper)!
Actually, the archive contains an image of a flash drive and a Windows version of the GHost program.
So, from the flash drive (512MB in size or more) we remove everything useful, because... it will be formatted as a file NTFS system When you deploy the image to it, run the file ghost32.exe and click OK.
The interface is very ascetic, select Local -> Disk -> From Image. That is, we will expand the disk from the image.
By default, the same folder in which you unpacked the downloaded archive should open, you need to select the file flash.gho - this is the image of the flash drive.
Now the most main point! We choose where to unpack this image. There are no drive letters here, there is only the size, so be guided by it so as not to accidentally ruin another drive!
Here in the New Size field you need to select the maximum size of the flash drive, if suddenly the number does not correspond to the size of the flash drive, then write the size larger than your flash drive, then the number will automatically adjust to the size of your flash drive.
That’s it, now when you click “Yes” the unpacking will begin.
If such an error suddenly appears, it means that the flash drive is in use. Either you have some program open from it, or it can, for example, be used by a player like Winamp. Click “Yes” and then the process will forcibly close everything that was connected to the flash drive.
The image is unpacked, click "Continue"
And click "Quit"
All that remains is to boot from the created flash drive. The space on the flash drive takes up about 150MB, so you can leave it like that just in case. In addition, Norton GHost can be used to back up data, as well as Acronis True Image. For example, to backup the system partition, select Local -> Partition -> To Image, and to unpack the image back to disk, respectively, Local -> Partition -> From Image.
If when you try to load a mega flash drive (the big one) an error occurs, then . After unpacking the archive, run the file “grubinst_gui.exe” where it says DISK, select a disk that matches the size of your flash drive and click on the Install button. The bootloader will write this to it. Thanks to Deimos for looking into this issue. I’ve already tried unpacking on many flash drives, but no errors arose anywhere to fix anything. Good luck everyone!
In the event of a serious failure in the operation of the OS, it is not always possible to turn it on even using safe mode. In such cases, running Windows 7 from a flash drive without installation will help.
This advice may seem strange to a beginner, but experienced administrators always have such a drive with them. The bottom line is that Windows 7 will boot from a USB flash drive on which the OS image was previously recorded, and not from a hard drive, as usual. Such a system has default settings so that unwanted changes will not be reflected when it starts.
Preparing for launch
How can a regular user run Windows 7 from a flash drive? To do this, you need to have a bootable USB flash drive, at least one free USB port on your device, and a basic knowledge of English or an online translator at hand. To create a LiveUSB, it is advisable to select a flash drive that has previously been used on this PC, otherwise you may need to install a driver.
The following procedure is suggested:
1. Insert the drive into the device that is turned off; in this case, the LED of the flash drive should light up only when the computer starts.
2. You need to go to the BIOS menu or a separate Boot Menu, if available. To do this, when the logo appears, you must press, depending on the motherboard manufacturer, F2, Delete, Esc or another key. Often, a hint will appear at the bottom or top of the screen.
3. Most older BIOS versions do not support the mouse; control is done using arrows. Next, you need to go to the Boot Menu, Boot Settings or simply Boot tab, it is responsible for the boot order. To run Windows 7 from a flash drive without installation, you need to set Flash Device first.
4. To save you need to use F10, then Enter. It is worth noting that changes in the launch order can be either permanent, in which case you need to repeat the previous two points and return everything to its place, or act within the limits of only the current start.
5. After this, the Windows welcome screen should appear. You may need to enter an activation key; if Windows was preinstalled when you purchased the PC, it is in the documentation for the device. You should not try to log in there using your login, because the OS does not know it.
Possible mistakes
The steps described above will be enough to launch Windows 7 from a flash drive in almost all cases. When everything went well, you can start diagnosing and then troubleshooting. If the result is still negative, then write down the error code displayed on the screen.
When nothing is displayed on the monitor, the reason is most likely due to incorrect launch settings (steps 2-4) or an incorrectly recorded image.
If, after setting the boot order, the OS is still read from the hard drive, then perhaps the changes were not saved or the computer does not see the flash drive, then you need to remove and reinsert the device, rebooting the computer, or repeat everything with a new drive.
WinToUSB: a tool to install and run windows 7 from a USB drive
Installing and running Windows 8/8.1 from a USB drive is relatively easy, which cannot be said about Windows 7. Unlike Windows 8/8.1, Windows 7 does not include the Windows To Go function, which allows you to install and run corporate versions of Windows without much effort 8/8.1 from USB flash drives.
On the Internet you can find many step-by-step instructions on how to install Windows 7 on USB drives using various third-party utilities. Today I want to introduce you to another excellent and, perhaps, the best tool for installing Windows 7 on USB.
We'll talk about WinToUSB. It is a free and easy to use program that allows you to easily install Vista, windows 7, windows 8 and windows Server 2008 R2 on a USB drive. You only need to make a few mouse clicks. Moreover, WinToUSB can be used by users of professional editions of Windows 8/8.1, which, as in the case of Windows 7, do not have the Windows To Go function mentioned above.
WinToUSB supports both USB flash drives and external hard drives. Another benefit of WinToUSB is that you won't have to download and install the Windows Automated Installation Kit (WAIK) to use this tool. In addition, it is fully compatible with MBR and GPT disks.
To install an operating system on USB, you must have a windows ISO image or installation DVD and, of course, a USB disk. It is recommended to use a drive with a capacity of at least 16 GB.
Please note: Since Microsoft did not provide an option for installing Windows 7 on a USB, you may not be able to run Windows 7 from a USB flash drive on all computers.
How to use WinToUSB
Download the WinToUSB installation file (link at the end of the post), install and run the program. Next, click on the button located to the right of the “ISO File” field, go to the Windows ISO file and select it. If you want to use the installation DVD rather than a disc image, insert it into your computer's DVD drive, then in WinToUSB, click on the large optical drive icon and select your installation disc in the "CD/DVD" field.
Now click “Next”, select your USB drive in the “Please select the destination disk” field and click “Next” to start installing windows. And make sure that there is no important information on the USB, because... the program will offer to format it.
During my test, the program took about an hour to install Windows 7 Ultimate. Perhaps in your case this process will complete faster, but it all depends on the capabilities of your computer and the speed of the USB drive.
The tool is compatible with all the latest windows versions, including windows 7, windows 8, windows 8 and windows 8.1. I tested it on Windows 8.1 Update 1 and can confirm that the program works flawlessly.
Download WinToUSB
How to run windows from a flash drive without installation
For almost any modern OS, you can create a so-called live image on a flash drive - that is, the entire system in an almost installed form will be stored on a flash drive, and when such a flash drive is connected to a PC, this system can be launched and worked with it in the same way as with installed on your hard drive. The downside is that the first launch is quite long, and for comfortable operation you need a USB 3.0 flash drive with a capacity of at least 16 GB and read/write speeds of at least 20-30 MB/s. Why is this necessary? For example, to quickly deploy a workplace, instead of carrying a laptop with you, you can limit yourself to a flash drive. This flash drive can also help if Windows installed on the device does not start.
In order to create a live image, we will need any Windows 10 image (read how to get it here) and the Rufus program (you can download it for free on the official website). Now we connect the USB flash drive to the computer, open Rufus, select the NTFS file system, select the ISO image in the “Create boot disk” menu, and select windows To Go just below:
That's it, now click Start and wait for the image to be copied to the flash drive. You can also transfer the necessary portable versions of programs to it.
How to run windows from a flash drive?
Admin 10/9/2013 — 11:10 Workshop
Microsoft Corporation has been developing and improving operating systems for a long time, but so far not a single distribution has officially appeared that could fully work from an external device on any computer. No matter how hard you try to protect your computer from breakdowns or virus infection, sometimes critical situations occur when the installed operating system can no longer function normally and stably, and you need your files and information that remained in the working folders along with the OS. This is why emergency boot disks, or windows PE, were created.
Good to know! In order to load such an operating system from an external storage medium, you must first complete the following steps:
It should be remembered that the speed of the operating system, which is loaded from an external device, is much slower. This is due to the fact that the performance depends on the operating speed of the device itself, as well as the operating frequency of the bus through which the signal travels from/to the device. If you run the OS from USB devices, the speed drops by about ten times (The average speed of loading information from a flash drive is 10 MB/s, the average speed of HDD SATA is 100-120 MB/s).
How does the process of loading and starting OS PE occur?
After pressing the computer's power button, the devices are polled, after which their readiness is checked, and an attempt to boot begins according to the priority list, which is stored in the BIOS settings. The first step is to read the boot sectors, which store the addresses where the boot loader is located to run Windows PE. After this, the preinstalled system image begins to load into the computer’s RAM. It is worth noting that all files and settings that occur while working with the OS will be lost the next time you start it.
How to configure the process of loading Windows PE from a flash drive?
There are currently two types of BIOS. The old one is typical and simple, which is similar to MSDOS and contains only menu items that can only be navigated using the keyboard. The new one is UEFI, it is significantly different in both appearance and functionality. In UEFI, you can control and select all settings using the mouse and keyboard.
Organization of booting in UEFI
If possible, you can simply drag the desired device to the first place with the mouse pointer, thus changing the boot order. The classic download method also works:
Boot organization in a typical BIOS
Alternative download method
This method is used if you can go to the bootloader menu separately, explicitly specifying the boot devices to it.
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