SYS File Extension
Windows System Format
- File Type sys
- Developer Microsoft
- Popularity
- Application Microsoft Windows
- Category System Files, Dangerous Files
- Format Text and Binary
What is a SYS file?
Windows System Format files, recognized by the SYS extension, fall into the System Files and Dangerous Files categories, amounting to 337 files.
The Windows System Format (SYS) was created by Microsoft, a company that developed file format and produced 242 programs for their use.
SYS files are compatible with various operating systems, including Windows, Linux and Mac OS. If you need to others a SYS file, you can use one of 2 programs, such as Microsoft Windows and CP/M.
Programs that support SYS files
How to open a SYS file?
If you’re having difficulty opening a SYS file, it is often due to not having the correct software. To solve the problem, choose a compatible program from the list. Then follow the link to the official developer site, download the software, and install it on your device.
Microsoft Windows and CP/M are among the most widely used programs for handling SYS files. To set up the newest version of Microsoft Windows on your device, simply go to the official Microsoft website. There you can download the edition compatible with every operating system.
Once the process is complete, Microsoft Windows should take over as the default application for SYS files.
Make Microsoft Windows the default SYS viewer
Change the default app to open files on Mac
- Right click or use Control + Left Click on the desired SYS file to access a dropdown menu of actions;
- Choose "Open in Application" and click "Other";
- At the bottom of the window, you will find the "Enable" menu. Default, will be set to "Recommended Programs";
- Choose "All Programs" in this menu and search for Microsoft Windows. Check the box next to "Always open in app" to make it the default program.
Change default programs in Windows
- Start by right-clicking on your SYS file, then select "Open With" and continue by clicking "Choose another app" from the options provided;
- Inside the popup window, scroll through the list of applications and specifically choose Microsoft Windows as the application to associate with your SYS file;
- Check the "Always use this app" checkbox and click "OK".
Finding answers to SYS file problems
Rest assured, any issues with SYS files can typically be addressed with simple software adjustments. See the tips below for help.
What are the steps to repair a damaged SYS file?
Open the damaged SYS file in a recovery program and select the "Repair" menu item to start the repair operation. Allow the recovery process to complete, which will automatically repair the damaged system files.
What are the methods to detect if my SYS file has been corrupted?
The signs of corrupted SYS system files can manifest as:
- Unexplained SYS file size inflation;
- Microsoft Windows or other programs stop responding or crash when trying to handle the file;
- When opening the file, errors occur or the inability to access its contents;
- While working with the file, error alerts are encountered;
What are the reasons behind Microsoft Windows crash?
Insufficient software updates can contribute to Microsoft Windows crash. To avoid this, make sure that you have installed the latest updates for Microsoft products.
A computer restart is often the key to solving numerous common problems. That’s why, it is recommended to restart the computer before making any changes to the software settings.