Files with the .sys extension are system files, and together with .inf description files they often make up various drivers for computer hardware. If your hardware driver is only sys and inf files without the usual setup.exe, do not despair, this driver can also be installed.

Instructions

Launch Device Manager. This can be done through the control panel or through the computer properties, which are available in context menu"My computer." Review the list of devices. Any uninstalled devices will be marked with yellow question marks. Right-click on the unidentified device and select “Update Drivers.” The “Found New Hardware Wizard” will launch. Click on the item “Search for driver drivers on this computer”, which means manual search files.

In the next window, specify the path to the sys. Click the browse button and sequentially expand the directory tree to the folder with the sys file. Click "Ok" to confirm your choice. Click Next to begin the driver installation process. If the "Setup Wizard" recognizes the sys and inf files suitable driver, driver installation will start automatically. If these files do not fit the specified device, the “Wizard” will prompt you to specify a different path for the driver location.

If you received a sys file as a driver for the device without inf file, the installation wizard will not be able to automatically recognize the driver. Try copying the sys file to the drivers folder of the Windows operating system - to the System32 directory, drivers folder. And then run a hardware search and automatic installation devices. It is also worth noting that such files can be infected with various malware, which in automatic mode are distributed on the Internet, information media, and copy important data, transferring it to the creator. Therefore, try to scan all files with anti-virus software to be completely sure of the integrity of the files.

The most common problem that prevents users from opening this file is an incorrectly assigned program. To fix this in Windows OS, you need to right-click on the file, in the context menu, hover the mouse over the “Open with” item, and select “Select a program...” from the drop-down menu. As a result, you will see a list of installed programs on your computer, and you will be able to select the appropriate one. We also recommend checking the box next to “Use this application for all SYS files.”

Another problem that our users also encounter quite often is SYS file damaged. This situation can arise in many cases. For example: the file was downloaded incompletely as a result server errors, the file was damaged initially, etc. To fix this problem, use one of the recommendations:

• Try to find required file in another source on the Internet. You may have luck finding a more suitable version. Example Google search: "File filetype:SYS" . Just replace the word "file" with the name you want;
• Ask them to send you the original file again, it may have been damaged during transmission;

What is a SYS file?

File SYS is a system file used by the Microsoft DOS and Windows operating systems. He contains system settings and variables and functions that are used to start the operating system. Files SYS typically used to store device drivers and other core Windows functions.

Some example files SYS include the following: IO.SYS: Stores default DOS device drivers and the DOS initialization program. Uses DOS and Windows 9x. MSDOS.SYS: Contains the core operating system code for DOS, known as the DOS kernel. CONFIG.SYS: Contains basic configuration information used by DOS. System files are most often found in the Windows directory for Windows installations. In particular, many files SYS are stored in the Windowswinsxs directory in later versions of Windows.

How to open a SYS file?

The most common problem The problem that appears at the moment when you cannot open the SYS file is paradoxical - the absence of the corresponding program installed on your device. The solution is very simple, just select and install one program (or several) to service SYS from the list that you will find on this page. After correct installation The computer itself must bind the installed software with a SYS file that you cannot open.

Programs that will open the SYS file

Other problems with the SYS file

Have you downloaded and installed one of the programs correctly and the problem with the SYS file still occurs? There could be several reasons for this situation - we present a few reasons that create the most problems with SYS files:

• The SYS file affected by the problem is damaged
• the file is not downloaded completely (download the file again from the same source, or from the email message application)
• V " Windows Registry"there is no corresponding SYS file association with installed program for its maintenance
• the file is infected with a virus or malware
• the program serving the SYS file does not have the appropriate computer resources, or the appropriate controllers are not installed to allow the program to start

The SYS extension indicates system files, used in operating systems Windows and MS-DOS. Such files contain information about replaceable drivers, device settings and other functions. Without SYS files, the operation of the system would be impossible, since they provide communication between Windows system, devices and external devices.

Typical SYS files

The most common SYS file type is CONFIG.SYS. It is well known because it contains all the driver performance information and configurations needed to run MS-DOS. Other SYS files:

• MSDOS.SYS- contains the base code DOS systems called the DOS kernel.
• IO.SYS- contains standard DOS drivers and a program responsible for launching DOS. It is used in DOS and Windows 9x.
• KEYBOARD.SYS- contains information about the keyboard layout.

SYS File Locations

Most of the SYS files are hidden inside the system. They can usually be found in the main Windows folder, and in the Vista version and newer files SYS are usually located in system32 drivers and windows WinSxS.

Additional Information

1. SYS files can be used in a Mac environment if the Windows system is installed.
2. SYS files are stored as text files in binary format.
3. SYS files are susceptible to any virus infections and malicious software effects.

Programs that support the SYS file

We hope that we helped you solve the problem with the SYS file. If you don't know where you can download an application from our list, click on the link (this is the name of the program) - you will find more detailed information regarding the place from where to download the safe installation version required application.

What else could cause problems?

There may be more reasons why you cannot open the SYS file (not just the lack of a corresponding application).
Firstly- the SYS file may be incorrectly linked (incompatible) with installed application for its maintenance. In this case, you need to change this connection yourself. For this purpose, click right button mouse over the SYS file you want to edit, click the option "To open with" and then select the program you installed from the list. After this action, problems with opening the SYS file should completely disappear.
Secondly- the file you want to open may simply be damaged. In this case, it would be best to find a new version of it, or download it again from the same source (perhaps for some reason in the previous session the download of the SYS file did not finish and it could not be opened correctly).

Do you want to help?

If you have Additional Information about the SYS file extension, we will be grateful if you share it with users of our site. Use the form located and send us your information about the SYS file.

You"re here because you have a file that has a file extension ending in .sys. Files with the file extension .sys can only be launched by certain applications. It"s possible that .sys files are data files rather than documents or media , which means they"re not meant to be viewed at all.

what is a .sys file?

Developed by Microsoft, the SYS file format was designed to store compiled system resources like configuration variables and settings required by Windows and DOS (Disk Operating System) for performing its intended operations. Also known as Windows system files, the content of a SYS file normally consists of core Windows and DOS components like driver resources and references to corresponding Dynamic Link Library (DLL) modules. The io.sys file, for example, contains DOS initialization code and driver resources required by DOS, while the config.sys file stores system variables and configuration settings of Windows and DOS. The content of these SYS files can be viewed or edited by using applications that have been built into Microsoft Windows.

how to open a .sys file?

Launch a .sys file, or any other file on your PC, by double-clicking it. If your file associations are set up correctly, the application that"s meant to open your .sys file will open it. It"s possible you may need to download or purchase the correct application. It"s also possible that you have the correct application on your PC, but .sys files aren"t yet associated with it. In this case, when you try to open a .sys file, you can tell Windows which application is the correct one for that file. From then on, opening a .sys file will open the correct application.

applications that open a .sys file

Microsoft Windows Operating System

Microsoft Windows Operating System platforms mostly used files with .ANI extension, a graphic file format used for animated mouse cursors, which are also defined as Windows Animated Cursor. These files have the same functions with CUR file format or better known as the Static Cursor; its distinction is that being an animated cursor with the use of strings of images to show animation. The format is based on the Microsoft RIFF file format, which is utilized as storage for keeping the individual frames, which are typical Windows icons of the animation. This type of file is usually integrated in a customized theme for desktop, and is helpful to personalize the CPU system. Its final animation is designed with some icon frames are used for showing a single image after another to generate animation. Despite a number of frames using the icon format, part of the stored data in the animated cursor file handle the order of the step, length, title, and the author of the animation.

a word of warning

Be careful not to rename the extension on .sys files, or any other files. This will not change the file type. Only special conversion software can change a file from one file type to another.

what is a file extension?

A file extension is the set of three or four characters at the end of a filename; in this case, .sys. File extensions tell you what type of file it is, and tell Windows what programs can open it. Windows often associates a default program to each file extension, so that when you double-click the file, the program launches automatically. When that program is no longer on your PC, you can sometimes get an error when you try to open the associated file.