Migration to the Setting app is still going on.
The Windows operating system ships with native troubleshooting packs you can run to fix issues with audio, video playback, Windows Update, internet connection, etc. If you want, you can add/remove ...
Several Windows users have reported being unable to run the Program Compatibility Troubleshooter on their PC. You can run the compatibility troubleshooter by going to Settings > Troubleshoot > Other ...