Windows 10: Opened my PC this morning and out of nowhere it said "User profile service failed to log in"

Greetings, Earlier today I turned my PC on but instead of it automatically logging in, it said "user profile service failed to log in" - of course, I had no idea what that meant so I just clicked ok and continued to the log in part, and when I logged in instead of the 'welcome' text it said 'preparing windows'.When my windows loaded, ALL of my data was lost, everything was reset back to normal as if I had just re-installed my windows. Everything associated with my user, gone out of nowhere though I had not done anything wrong. Yesterday, I shut down my PC with no issue at all nor had I downloa

:)

 

The User Profile Service service failed the sign-in. User profile cannot be loaded.

Hello,

When attempting to login to my computer, I get the following message:

"The User Profile Service service failed the sign-in.

User profile cannot be loaded."

I referred to this Help article,You receive a "The User Profile Service failed the logon” error
message,

but the only difference is I only have one user profile on this computer. So, I can't login with another user to go through the steps listed in this post.

Any suggestions?

Thanks,

 

User Profile Service service failed the logon. User profile cannot be loaded

After the windows 7 update of KB04490628 on 3/19/2019, the system errors when trying to log on to the pc account with the message user profile service: service failed the logon. User profile cannot be loaded.

I have logged into an alternate administrator account on the PC that was not corrupted and tried to uninstall the 3/19/2019 windows update but it will not allow that update to be uninstalled.

What steps can I take to correct the issue with the account. Everything on the PC is under the corrupt account. I have gone in and backed up onto a flash drive all of the pictures and documents, etc under the failing account using
the administrative ID but would really like to correct the user account. I saw a similar issue listed under Vista but several non-vista users indicated the steps there did not fix their problem.

 

User Profile Service Service failed! User profile cannot be loaded.

Brink:
I am using registry editor from command prompt. Drilled down to c:windows\system32\config inside the Load Hive dialog window. Have selected (checked box) the SAM file; clicking on Open opens error message that says:


SAM
This file is in use.
Enter a new name or close the file that's open in another program.

_______

I am at a loss, since I am not running any other program!

Any suggestions?

The SAM file is listed as being 64KB file size.