I'm going to note an app. THIS IS NOT TO SAY THIS IS WHAT IS GOING ON but to share there are legitimate apps that can do this. Example:
" Reboot Restore Rx™ is a Freeware utility that makes it easy to maintain PC’s in small public access
computing environments (classrooms, computer labs, kiosks, internet cafes, libraries, etc.). Every time you restart the PC’s - they will automatically reset to your desired baseline settings."
So there we have apps that can cause this. I don't know your PC or if you share it.
---> If this was mine I'd create a NEW LOCAL LOGIN ACCOUNT and then use that to see what happens in a NOT AN EMAIL BASED LOGIN. Here's a note about that:
Hi, my new gaming computer I have had for 4 months was working completely fine until 2 days ago. I come back from school to play a game on my computer, my pc boots up normally and my login password and stuff are still there, but after I have logged in it asks me to set up my pc and set up cloud storage so I click skip cause it doesn't let me click continue, then everything on my desktop is gone, so I have to reinstall uplay and discord to play, my games are still installed for some reason, someone help me fix this cause this same issue happened every time I turn my pc back on.