> I've had to fix friends' computers who had their user profiles corrupted by an update so they can't log in.

An extremely recurrent issue with windows 10 updates (in particular, the big ones that happen every six months and behave like a complete OS reinstall) that manifests in so many different forms.

I've seen it do stuff like only breaking UWP apps while leaving everything else intact. I've seen it break UWP apps + the start menu. And then I've seen it do the login breaking thing. The thing those symptoms have in common is that they were always solved by simply making a new user profile and logging into it then transferring the user data into the new profile, proving that the root of all horrors comes from bugs in the user profile migration that windows does during updates.

I'm always horrified by the process not just because of the bugs but also because of how inane UWP is. Every new profile created will also get its amazing share of UWP crapware downloads, because of course it wouldn't make sense for software to be installed system wide, nah let's do that every time a profile is created and let's pull the microtransaction ladden mobile games while we're at it. Creating user profiles takes so much time on older acquaintance computers with spinning rust too.