User Profile Service Failed User Profile Could Not Be Loaded on Windows 10
The solution is fairly simple (found it on reddit):
Just copy the Default folder (in C:\Users) from another Windows 10 computer and, after you rename your problematic Default folder to something like DefaultOLD (just to keep it for safety reasons), paste it in your Users folder.
To make sure that you won't have problems with permissions of the "implant" folder, just transfer it via a FAT/FAT32 formatted usb stick (those filesystems don't have permissions).
Had similar issue. After spending some time i found the following solution.
Description: windows 10; upgrade from 7.
Issue: unable to login to new accounts.( profile service error)Solution:
as admin: rename "c:/Users/default" folder to default.bak
Go to c:/windows.old/Users/. Copy Default folder to c:/Users/
Logoff and login to new account( no more profile service error)