The User Profile Service failed the logon. User profile cannot be load

Hi, at windows start i get the message "The User Profile Service failed to logon. User profile cannot be loaded". There was no known activity last time system was up and running and it was shut down normal.

The desctop(HP) was delivered some years ago with V7 installed, ONE personal userID with admin auth. was created. Then a System repair disc was created.

What is the safest and simplest way(if any) to fix this problem and maintain the user data?(I did see support strings about this problem but they seem very complicated and confusing to me)

1. Shoud I restart system some functional key to get into safe mode or use the System repair disc and then what option?

2. Should I then logon to the default accountID(not known to me), and restore system to older backup point or shoud I try to repair the personal UserId?

Please advice

OK. But if I manage to enable the built in administrator, will it not fix the problem if I restore the system into a previous checkpoint?

Instead of manually editing the Registry and correcting SID, you can try restoring the backup copy of Registry hives from "Regback" folder. Usually the backup Registry will contain the correct SID settings and restoring them will solve the issue most of the time. I have done this 6 -7 times in similar situations with great success.

You can use the Windows install DVD to restore the backup as per this guide : Startup Repair Infinite Loop Recovery

Yes it has been my experience that if you run the system restore it will correct the problem. But not always. It is however the easiest and quickest option to try.