Monday, July 18, 2011


User Profile Service Failed To Logon | User profile Cannot Be Loaded

I upgraded to Windows 7 last night and now I can't log in. When I put in my password, an error comes up that says "The user profile service failed the logon. User profile cannot be loaded". I am the only account on my computer. I saved all of my files last night, so can I just do a system restore? And how do I do that on Windows 7? How do I fix this?


If you can't get to any accounts at all, then start at step...

  • Restart your computer and hit F8 multiples times until you see a menu-like screen, if you see the Windows splash screen then repeat this step
  • Highlight and hit enter on Safe Mode with Command Prompt. Try logging in there. If it still doesn't work, then go to step17
  • If you are able to login, once a command prompt pops up, type: net user administrator password /active:yes (you can specify whatever password you want for the administrator account.)
  • If you get a message saying "The command completed successfully", then restart your computer by typing: shutdown -r
  • Boot up again pressing F8, but this time choose just Safe Mode.
  • You will be able to login as Administrator with the password you set in Step 3
  • Hit (windows logo)+R
  • Type regedit
  • Once the registry editor opens up, look for HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\ProfileList
  • In the left pane, find the one that starts with S-1-5..... and ends with .BAK; if you don't find one, skip to step 15
  • Right click it and click Rename, then change the .BAK to .BK
  • Right click the one with the same numbering but without the .BAK and add .BAK add the end
  • Right click the one that you renamed to .BK and clickRename, delete the .BK
  • Eventually, you have switched the .BAK from the end of the second entry to the first. That should probably fix your problem.
  • If you didn't find a .BAK then try this: Open Windows Explorer to C:\Users\Default\AppData\Local\Application Data
  • If you find another Application Data below the one you're on, then delete it. That should probably also fix your problem.
  • 17. If you can't login in Safe Mode, then reboot and hit F8 until you see the menu again, then hit enter highlightingRepair Your Computer
  • Wait until all Windows Files finish loading, then hitNext when it asks keyboard language.
  • Try logging in here also, choose your user from the dropdown menu, and type the password, then jump to step 23
  • If that still doesn't work, then if you have your Windows Installation CD still, put it in and restart your computer.
  • Hit F12 until you see a menu of boot options, choose Boot from CD
  • Choose keyboard language then hit next. Find Repair Your Computer from a little below the center left.
  • Choose Open Command Prompt and type: net user administrator password /active:yes (here again you can specify a password)
  • Close the command prompt and click Restart and jump to step 5

To disable the administrator account, type this in an elevated command prompt: net user administrator /active:no

There seems to be a forum bug where some spaces disappear. Please note that there is a space between "administrator" and "password".

Try taking away all bold formatting to see if that will fix the space problem.


About bench3 -

Haja Peer Mohamed H, Software Engineer by profession, Author, Founder and CEO of "bench3" you can connect with me on Twitter , Facebook and also onGoogle+

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