Holy shit, the last 48 hours is just issue after issue after issue after issue, I can barely keep track anymore.
Tried getting Forza Apex from the Store this week. Realized it was downloading to my poor SSD so I hit cancel. Store crashed? I guess because it disappeared, and would no longer open. Just flash open and close. Then I realized all my stupid "Apps" were doing this, like the Xbox app which I actually used for the streaming. But calculator, weather, photos, it all just flashes open and immediately closes.
Tried PowerShell stuff for apps, kept getting red errors with some solutions that went down rabbit holes, or simply didn't work.
Ended up reinstalling Windows 10 in-place (keeps everything installed). Which did nothing.
After that failed, found out that my account is actually the dreaded "built-in administrator" account, which is evidently really really really bad on me for using day-to-day. Now whenever I tried to open an App I got a "built-in administrator can't open this" error.
So F it, I'll just abandon this "built-in administrator" account and goto a local user and sign in there. Nope. Can't sign in on another user because my Microsoft account is already attached to the "built-in administrator" account. Can't sign out of the Microsoft account because my "Sign-in options" page in Settings/Accounts just infinitely loads. Mail drops a 0x80070525 error which I guess is good for diagnostic needs, but wtf.
So, anyone have any ideas? Ideally without nuking it all and installing fresh.