I just upgraded to Windows 10 from Windows 8.1. Things worked as expected with the included Xbox app for the first few days. However, for the last day or two, the app has crashed immediately upon launch, with no error message displayed.
I have run the app troubleshooter, but no errors were found. Is there a way I can reinstall the Xbox app without refreshing my PC? I have an Xbox One console, so having access to that app is pretty important.