Windows 10: Windows randomly switcing profile onto an unknown empty profile where you can't do anything

This happens while a user is working into his profile and happens in random... can happen once or twice every week or two weeks. Windows seems to switch from User Profile onto another empty User Profile that has no permissions and so disables the user from doing anything. While in this empty profile nothing works, not even start button. You can only right click on the windows icon and then you get blocked by defender. Looking in event viewer there are lot of hyper-v-vmswitch events not sure if that's related. No HyperV role installed in the laptop though.The only way to get the machine workin

:)

 

CCC Profiles that disappear

id suggest a spyware check

 

Lost default photo viewer after profile rebuild

Thanks Brink. I've tried those steps before i started searching Google. After the profile rebuild i don't have the Photo app listed to choose to make it default in either the system settings for default apps or the Open With option.

I can't even find it doing a search. Seems to have been removed somehow with the profile rebuild, which doesn't make sense.

Might be helpful to list what i've done I've done the open with check, the choose default program in the system menu, tried that in device manager default programs also. I've checked the programs and features Turn windows features on/off and it's not listed there (never thought it was but that was a suggestion), searched the MS Store, it's not listed there either.

I don't like playing in the registry unless i have defined steps and haven't found anything for this yet, just the Win7 version like in my OP.

 

Profile posts

has the profile posts list got longer? ( more posts visible)