The Windows 10 operating system from Microsoft is quite reliable and I don’t have any particular complaints - you still have to try hard to break it. However, cases are different, and therefore today I want to talk about the main errors when loading Windows 10 and how to fix them. In more than half of the cases, restoring the system boot and normal operation is quite possible - you just need to remain calm and correctly follow the instructions below.
Black screen when starting Windows
This is perhaps the most common mistake Windows boot 10, which every third user has encountered at least once. Black screen with no signs of “life” operating system may be accompanied by the appearance of a cursor on the display or without it at all. It is pointless to wait longer than 15-20 minutes for the system to start successfully - the desktop will not appear. The most common cause is a failure of some drivers or their incorrect installation. In this case, it is not at all necessary that you did the installation yourself - some programs, as well as the Update Center, can do this.
The solution in this case is to launch the OS in Recovery mode, booting from the installation Windows flash drives. Open the section Diagnostics, in the next window click on Extra options and then - System Restore.
After this, you will see a list of available recovery points. Select the closest one in time and click the “Next” button.
Only here in the additional parameters select the “Startup Recovery” section.
If you can’t restore normal operation, try the following advice.
Error “The computer is not started correctly”
In this situation, Windows 10 cannot boot, but at least it does not lose control of the computer and signals to the user that the computer is not running correctly.
You can, of course, click on the “Reboot” button, but as a rule this does not give any result (if sometimes it boots normally and sometimes not, check your hard drive).
To correct the situation, you need to click on “Advanced options”, and then go to the section Troubleshooting > Extra options > Boot Options and here click on the “Restart” button. After this, the following menu should appear:
Press the key 6
or F6 to run secure Windows mode with command line support.
Your PC should restart again and boot into safe mode. In this case, there should be a command line window on the screen. Enter the following commands one by one:
Sfc /scannow dism /Online /Cleanup-Image /RestoreHealth shutdown -r
The last command will again lead to a reboot and Windows should still start normally.
Operating system not found
This is the saddest option of all. The computer simply does not get to the point of loading Windows and writes errors like this on a black screen.
First: “Boot failure. Reboot and Select Proper Boot device or insert boot media in selected boot device."
Second: “An operating system wasn’t found.” Try disconnecting any drives that don’t contain an operating system. Press Ctrl+Alt+Del to restart".. In order to restore it, you will need the installation disk again. Go to the section bootrec /RebuildBcd bootrec /fixMbr bootrec /fixboot
This way we will overwrite the bootloader files. Restart the PC and check the operation of the system.
3. Hardware damage hard drive . Well, this is the saddest, and most importantly, expensive option, since you will have to buy a new hard drive.
New Windows 10 OS from Microsoft has already gained popularity among millions of PC users around the world. But like all new products, Windows 10 is not without its flaws. Many users of this OS experience bootloader problems. Most often this problem occurs due to new policy operating system updates.
Now in Windows 10 you cannot disable updates, as it was in Windows 7 and XP.
The problem with the bootloader itself appears when the user does not wait for the system update to finish and turns it off POWER button.
After the user turns on the computer again, he encounters such a message on his monitor screen.
This message indicates that you have bootloader is damaged and it should be restored. It is also worth noting that turning off the computer during the update is not the only reason for the breakdown. The bootloader can still be damaged viruses and various malware. Another fairly common reason for its failure is faulty HDDs, in of which there are bad sectors , that is, the boot record will be located precisely on these sectors. Also, the cause of bootloader failure may be installing a younger OS on top of Windows 10. To help our readers restore the bootloader, we have prepared examples below in which we describe in detail how to restore it.
The easiest way to recover
Having seen a message about a bootloader failure, the first question a PC user has is how to restore the Windows 10 bootloader. In this example, we will describe the easiest way to restore it. For this example we will need .
If you do not have this disk and Internet access, you can make it on another computer with the same OS.
You can also use the original Windows 10 installation disc for this task. Well, let's get started. Insert the recovery disc into the drive and boot from it when the computer starts.
In the first window of the Recovery Disk Wizard, you must specify keyboard layout, after which the wizard menu will open.
In this window we will select the second tab “ Troubleshooting" and immediately move on to the next "".
In the additional parameters, we are interested in the “” tab. After clicking on this link, the wizard will ask you to select an OS to restore it to start.
The computer being tested has one Windows 10 operating system installed, so there is only one choice in the wizard. After selecting the OS, the system will begin the procedure for finding computer faults and should repair the damaged bootloader.
If using this method you are unable to return Windows performance 10, then in the following examples we will describe the detailed process of recovering the boot sector using system utilities DiskPart And BCDboot.
Recovering the Windows 10 bootloader using the command line
For this method we also need disk Windows recovery 10 . Let's boot from the disk, as in the previous example, up to the "". In this menu we are interested in the “” tab, which we will go to.
First of all, we will launch the console utility on the command line DiskPart. To do this, enter the command diskpart in the console
We need this utility to display information about all local disks in system. Now we need to find the bootloader partition number. Usually this hidden section, occupying 500 MB. This partition is created automatically by the Windows 10 installer. Next, to search for it in DiskPart, we will enter the command list volume
From the image you can see that the partition with the boot record is located in the first volume on drive C. Also in the image you can see that Windows 10 itself is installed on drive D. Now we must exit disk program. You can do this with the exit command
After exiting DiskPart, enter the command bcdboot.exe D:\Windows Also note that the command uses drive D, since ten is installed on it.
This command completely recovered dozens of boot files. The principle of operation of this command is to use the utility BCDboot. The developers specifically created this utility to work with boot Windows files . It is also worth noting that thanks to the same utility, the Windows installer creates a hidden partition and copies boot files to it.
Restoring the Windows 10 bootloader using the command line (Method two)
In the second method we will also use the utilities DiskPart And BCDboot and try to rewrite the bootloader. To do this, let's launch DiskPart and find out on which disk our hidden partition and the partition on which Windows 10 is installed are located. Launching this utility is described above.
Now we need to format the hidden partition, which is located in the first volume. To do this, let's dial select command volume 1 which will select our hidden encrypted partition of 500 MB in size.
The next step is to format the selected partition. This is done in order to erase all files from it. For this operation, enter the command in the console format fs=FAT32
After formatting our partition, let's exit disk utility and enter new team bcdboot.exe D:\Windows which was entered in the previous example.
This command will not fix the bootloader files as in the previous example, but will create new ones. As you already understand, this method is used if the first one does not work.
Another way to restore Windows 10 boot using the command line
This method requires a utility Bootrec. Unlike the previous utility, this utility does not restore bootloader files, but restores boot entry . That is, she restores MBR- the first sector on the HDD. It is very important for the operating system that the MBR is intact and intact. When a computer starts, its BIOS first of all looks for the MBR in order to launch the operating system from it. For this example, let's run, as in previous examples, command line. The utility in question has two main commands /FixMbr and /FixBoot The first command is required to fix MBR, and the second creates a new one. First of all, let's consider the situation when our MBR is damaged. To do this, enter the first command in the console.
The image above shows that the operation was successful, which means that the MBR has been restored.
Now let's consider a situation where the first method does not work, that is, we will create a new MBR sector. To do this, we will use the second command.
From the image above you can see that the new MBR sector has been created successfully.
The examples show how easy it is to restore the MBR sector using the Bootrec console utility. If you have problem with start m Windows 10, we recommend using this example first.
We clean the system from malicious software before restoring the bootloader
If the cause of the bootloader failure is malware, then this one malicious code must be removed before restoration. In this situation it will help you. This is a rescue disk that has many tools for restoring your computer, as well as treating it for viruses. You can download Dr.Web LiveDisk on its official website www.drweb.ru. This Live CD is based on Linux and is free. This disc is distributed as ISO image, which can be written as optical disk, and to a USB flash drive. After burning the image to disk, launch Dr.Web LiveDisk.
IN start menu select the first option and continue downloading Dr.Web LiveDisk. After a few seconds, the Linux-based OS should start, which is actually Dr.Web LiveDisk.
With this operating system, you can completely clean your computer of viruses and even backup all information.
Also useful is the fact that this OS has full Internet support and a built-in browser. Firefox.
Let's sum it up
In conclusion, I would like to say that if you know all the intricacies of bootloader recovery, you can quickly fix your computer. It is also worth paying attention to the situation when it is impossible to restore the boot sector and the bootloader itself. In this case, you need to play it safe and use the funds full recovery systems. Such means are full image systems, created using the Windows 10 OS itself, as well as a program such as Acronis True Image . We hope that our material will help you restore the bootloader from the MBR, and your computer will function as before.
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Hello admin! Installed Windows XP on a computer that already had installed Windows 10 and of course ten now does not load, but only Windows XP loads. I read Vladimir’s article: “How to install Windows XP on a computer with Windows 10 already installed,” but decided to experiment and get the operating system boot menu using the command line, unfortunately nothing works, the commands pass, but Win XP is loaded again! If it’s not difficult for you, write another article where boot recovery will take place on the command line.
How to restore Windows 10 boot after installing a second Windows XP system on your computer. Let's work on the command line!
Hello friends! My name is Vladimir and yesterday I wrote an article for you about... For those who haven’t read it, I’ll explain the essence of the problem.
If you installed on your Windows computer 10, and then installed Windows XP as the second system, then only Windows XP will boot, ten will not boot! I described in great detail why this happens in the previous article and I would not like to repeat myself. Also in the previous article, we solved the problem with loading Windows 10 using a small program called Bootice. As a result, immediately after turning on the computer, we have a menu with the ability to select any of the installed operating systems to boot: Windows 10 and Windows XP.
Based on your requests, today I want to show you how to achieve all this using a regular command line.
So, we have Windows 10 installed on our computer.
In disk management, we separate space from the disk (C:) and create a disk (F:), install Windows XP on it.
After Win installations dows XP, only one XP boots on the computer.
We restore the boot of Windows 10 and create a menu with the ability to select any of the installed operating systems to boot: Win 10 or Win XP. We perform all actions on the command line
In the initial Win 10 installation window, click keyboard shortcut Shift+F10.
A command prompt window opens.
Enter the commands correctly:
diskpart
lis vol - with this command we display a list of existing partitions on the hard drive and see that hidden section500 MB containing Windows 10 boot loader files ( boot store configuration file (BCD) and boot manager file bootmgr) letter assigned C:, Accordingly, we will enter one of the following commands..
exit - exit diskpart
bootsect /nt60 C: /mbr - where C: partition letter System Reserved size 500 MB. D This command writes to PBR (Partition Boot Record) a code indicating the Windows 10 boot loader - BOOTMGR. If we reboot now, Windows 10 will load, but Windows XP will not load.
Using the following commands, we will create a dual-boot configuration in the Windows 10 boot store: Windows 10 and Windows XP.
bcdedit /create (ntldr) /d "Windows XP"(quotes are required)
bcdedit /set (ntldr) device partition=F:(where F is the letter of the partition with Win XP)
bcdedit /set (ntldr) path \ntldr
bcdedit /displayorder (ntldr) /addlast
exit
We restart the computer and see a menu for selecting operating systems.
The goal has been achieved.
If you boot into Windows 10 now and open Command Prompt as an administrator, then enter the command bcdedit, then the BCD boot repository will open, which contains information about all operating systems booting on this computer, in our case, two systems: Windows 10 and Windows XP.
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Hi all! In the last article we learned how. In today's article, we will learn how to enter Windows 10 safe mode if the system does not boot due to any errors.
Friends, as a result of what usually our operating system stops loading? That's right, because of the damaged system files and critical drivers, but most often Windows does not load due to the programs and drivers we have installed that are not designed to work in our operating system. I'll explain in a little more detail.
How to enter Windows 10 safe mode if the operating system won't boot
Recently, one person contacted me; he successfully updated his Windows 7 to Windows 10, but after the update, the drivers for his video card and TV tuner were lost. I updated the drivers for the video card, but with the TV tuner it turned out to be more and more difficult; on the official website of the device, drivers were posted only for Windows 7, there were not even drivers for Windows 8.1. The support told me that there are no 100% working drivers for Win 10 yet, but there are beta drivers and they are suitable for some and not for others.
I downloaded and installed the drivers along with the software on the TV tuner, without even creating a restore point just in case. The driver was installed and asked to reboot, after the reboot it appeared on the monitor blue death(blue screen), several reboots led to the same effect - the system boot ended with a blue screen.
What happened. Blue screen death is a protective reaction of Windows to incorrectly working code, that is, the system was automatically protected by a blue screen from a malfunctioning TV tuner driver. For removing incorrect driver I decided to use safe mode.
- Note: everything would be easier if I had installed the driver before installing .
We all know that safe mode is specially designed to fix various operating system problems. In a safe Windows mode 10 starts with minimum set processes that are owned and trusted by Microsoft. Therefore, we can use safe mode to remove incorrectly working drivers or programs that lead to Windows boot failure or unstable operation.
All this is clear, but how to enter safe mode if Win 10 does not boot!?
In the initial system installation window, click keyboard Shift combination+ F10.
A command line window will open, enter (suitable for any computers, including laptops with the UEFI interface enabled and the option Secure Boot command:
bcdedit /set (globalsettings) advancedoptions true
The command will make a change to the boot store configuration file (BCD).
The operation was completed successfully.
Reboot your computer and the Special Boot Options window will open.
Press the key F4 or 4 to enter safe mode, you can also use other special modes used when troubleshooting Windows 10.
If you want to log into the operating system in the usual way, then press Enter on your keyboard.
Here we are in Windows 10 safe mode.
We remove an incorrect driver or program in the usual way.
Typically, drivers are installed into the operating system along with the software.
Open the Computer window and click Uninstall or change a program.
We find the name of the non-working one, properly, software and click Delete.
If you installed the driver manually without an installer, uninstall it directly in Device Manager - right-click on it and select Uninstall.
If you want to prevent the Special Boot Options window from appearing when loading, then boot from bootable flash drive Windows 10 into the recovery environment, launch the command prompt, enter the command:
bcdedit /deletevalue (globalsettings) advancedoptions
This command will undo previously made changes to the boot store configuration file (BCD).
For insurance, before work, you can do.
Good health, my dear readers, brothers in the computer field, as well as just guests of the site.
Yesterday I updated the operating system and could not boot from it. The fact is pedal, but quite solvable. After delving into the essence and causes of the problem, I found a way out. Therefore, today I will tell you what to do if Windows 10 does not boot after the update. Read carefully and remember!
Why could this happen?
There can be many factors, both consequences and causes. We caught a virus (in this case Comodo Internet Security will help), the update was crooked, the application store did not work, and much more. It is quite possible that the registry structure has simply become damaged, which is why Windows simply cannot find the boot sectors. Monitoring the stability of operation will help prevent such a situation. personal computer and a couple of auxiliary programs.
For example, SS Cleaner. Ideal for users with minimal computer knowledge. Also, it is quite suitable - Reg Organizer. Also excellent software that will help clean and configure the system.
It often happens that the update package comes out quite crude, therefore, due to a conflict with any of the drivers, the operating system may slow down, for example, the computer freezes on the screen saver. This is quite fixable, and we will look at examples of solving this problem below.
It is important to understand that any service packs and patches must be downloaded only from the Microsoft website. Otherwise, you can completely ruin the installed graphical shell with low-quality content, to which, quite possibly, an inexperienced programmer, or even a hacker, had a hand, which is even worse. Since this can harm the most important aspect - security.
What to do if the laptop freezes on the screen saver?
First of all, I would like to warn you right away. In Windows 10, the installation of updates is slow. If home screen Starting the operating system hangs for 2-3 minutes. This does not mean that the system is slow. Perhaps at this time the setup process is underway installed files and script databases. It can even take up to 10 minutes, depending on the size of the update itself. Therefore it is better to wait. And if after this time the OS does not react in any way. Then you can work on solving this problem.
If the laptop freezes on the screen saver, we need to roll back to a stable version.
I want to immediately warn you that this method is not a panacea and it will not help fix all the problems with Windows at once. It only helps to fix the registry key HKEY_LOCAL_MACHINE\System\CurrentControlSet. Boot menu of the last working configuration in latest version There is no operating system according to the standard, but this item can be added.
We go to start, and in the execute line we type the command regedit.
The registry will open, we need to move to the section HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Session Manager\Configuration Manager. Here I’ll draw your attention to a parameter called BackupCount. It is responsible for how many times the system will save its state for rollback. According to the standard, there is only one, but you can change this number yourself.
Now we go, as shown in the figure below, to the OS configuration manager. You need to create a subsection there. It should be called like this - LastKnownGood. In it you need to create a parameter called - DWORD, don't go wrong with the name. Set it to Enable.
This should also help if you are experiencing a blue screen after the update.
How to restore the system more correctly?
It happens that after installing the drivers, a black screen appears. A simple rollback will not help here, since the software part of the operating system is affected. a complete restoration is required. You can do this in 5 different ways.
First. We go to the start menu, there we go to our system settings and select “ System protection».
Now you need to choose restoring state from checkpoint and press Further. A table with time parameters will appear in which you need to select the earliest point. Click it and restore it. In this case, we will not lose files and we will not have to go into the BIOS.
Second. A more radical method. It is based on resetting Windows to its original factory settings. This is like a reinstallation, however, you will not need to copy and then restore files. The OS will not erase them. We go to the settings of our laptop, then to the update and security section. Then click on the restore line and select - return the computer to its original state.
Third way, in which it is used backup files. Suitable when error 1607 appears. The latest version of the operating system has the ability to copy virtually all files for recovery. If necessary, they can be extracted and installed as the main version of the software, thereby solving problems with new versions. But in this case, you will need to enable a feature called file history. You will also need an external storage device – a flash drive or hard drive. Go to the settings of our computer and open the section recovery and security.
On the left side, select from the menu archiving service. Now in right side you need to click on the plus sign and select external drive partition, to which the data will be saved after it has been copied.
If everything is completed and carried out correctly, a switch will appear. It should be blue, which means the function is enabled.
All now selected files, which can be configured manually, will be compressed and sent to the external device.
Fourth. Using a recovery disk. An extremely useful method, although it requires quite a lot of time. Will help with incorrect installation video card drivers. It will also help if the mouse on your laptop does not work. So, we insert a clean flash drive into our USB port. Next, go to the start menu and there in the search bar we type the words - recovery disk. A section for creating one will appear.
The same can be done by pressing the key with the image of the Windows icon and the K key (R in English).
A window will appear with a description of why such a feature is needed in principle. We need to click the checkmark at the bottom and click the next button.
I would like to immediately warn you that a flash drive needs at least 4 gigabytes. This is due to the fact that Windows 10 is quite large in itself and the hard drive with recovery data will be quite weighty. This will be written in the next window. If everything is in order, the operating system itself will find the media and delete all data from it.
The formatting of the flash drive will then begin. It will take no more than 5 minutes. Next will be copying the files. Here you will have to wait from 10 to 30 minutes.
If everything is fine, then you will see a sign like this.
If you get a black screen or key f8 does not work does not work, then you can use this recovery disk. Just boot from it and select the very first icon on the top left.
Fifth. Usage installation disk. If you don't have one, I'll explain how to do it. We take a flash drive of 8 gigabytes or more. Copy everything necessary files and format it. Downloading the image operating system and check it for viruses using AVG AntiVirus Free.
A from here UltraISO program. Next, install it and open it. Next click here.
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