The Program Compatibility Assistant automatically detects known compatibility problems in older programs.
After you've run an older program in Windows 8.1, the Program Compatibility Assistant will notify you if there's a problem and offer to fix it the next time you run the program. If the problem is serious, the Program Compatibility Assistant might warn you or block the program from running. When that happens, you'll have the option to check online for possible solutions.
Here are answers to some common questions about the Program Compatibility Assistant.
It depends on the problem, but no changes are made to the program itself. For example, the Program Compatibility Assistant can automatically resolve conflicts with features in Windows, or it can run the program in a mode that's similar to earlier versions of Windows.
The Program Compatibility Assistant might appear if a program or driver hasn't registered correctly. This can sometimes happen when you install a device. If the program was able to install and work correctly, tap or click This program installed correctly to close the Program Compatibility Assistant.
You can use Group Policy to turn the Program Compatibility Assistant off or on. For advanced information on how to use Group Policy, go to the Microsoft TechNet
website and search for "Group policy".
The Program Compatibility Assistant might not be able to detect or fix your compatibility problem. If that's the case, try the Program Compatibility Troubleshooter. For more information, go to Making older programs compatible with this version of Windows.