fyrflygrl Posted September 4, 2023 Share Posted September 4, 2023 I recently had to reinstall Windows 10. Since the install, every time I open ME3Tweaks Mod Manager, I get a popup that says "This operating system is not supported. This application has only been validated for use on on the following operating systems: Windows 10 (not EOL version)". I'm running Windows 10 Professional, version 20H2, OS build 19042.1706. I even tried changing the compatibility to Windows 8 and then Windows 7, with no luck. I've never has this problem before. Any help would be greatly appreciated. Link to comment Share on other sites More sharing options...
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