Customer's pc has 4 User accounts: one Admin and three Standard. The Standard accounts are fine, but if you try to log on to the User account with Administrator status, you get "Welcome" and then this:
"The User Profile Service service failed the logon. User profile cannot be loaded. "
Consequently, nothing works. If you try to open, say, Device Manager in one of the Standard accounts, you get "...Windows needs your permission to continue" and a request for a password. Entering the password for the User account with Admin status gives the following:
"This file does not have a program associated with it for performing this action..."
If you try to enable Norton, for example, it asks for the password and then gives "...You need to be an Administrator to perform this action."
Format/reinstall is not an option.