Hi,
You can try to fix with Safe Mode - repeatedly tap F8 as you bootup.
Some programs like the Google Updater (if you added the Google Toolbar, Chrome or Google Earth) has been
known to cause this issue.
How to Fix the Error "The User Profile Service failed the logon. User profile cannot be loaded."
http://www.vistax64.com/tutorials/130095-user-profile-service-failed-logon-user-profile-cannot-loaded.htmlHow to Fix the Error "Your user profile was not loaded correctly! You have been logged on with a temporary
profile." in Vista
http://www.vistax64.com/tutorials/135858-user-profile-error-logged-temporary-profile.htmlBE VERY CAREFUL IF USING THIS ONE :
DO NOT USE THE HIDDEN ACCOUNT ON A DAILY BASIS! If it corrrups you are TOAST.
How to Enable or Disable the Real Built-in Administrator Account in Vista
http://www.vistax64.com/tutorials/67567-administrator-account.htmlUse the Hidden Admin Account to lower your account to user APPLY / OK then raise it back to ADMIN.
This helps clear corruption. Do same for other accounts if needed after following the above message.
You can use the Hidden Admin Account - Make another account as ADMIN with your same password (or
two with same password) use one to test or fix the other.
You can run the Hidden Admin Account command from the Command Prompt from here if needed.
This tells you how to access the System Recovery Options and/or from a Vista DVD
http://windowshelp.microsoft.com/Windows/en-US/Help/326b756b-1601-435e-99d0-1585439470351033.mspxIf you can't access your old account you can still use an Admin to migrate to a new one (remember to always
leave an Admin Account that is unused except to test and fix).
Fix a corrupted user profile
http://windowshelp.microsoft.com/Windows/en-AU/help/769495bf-035c-4764-a538-c9b05c22001e1033.mspxHope this helps.
Rob - Bicycle - Mark Twain said it right.