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

Date: May 27th, 2009

Author: Joe DiFiglia

Category: Windows Vista

Tags: ,

Article URL: http://computingondemand.com/?p=1969


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  • Fix the problem
    1. Add “.old” to the key without the .bak on it by right clicking on it and selecting rename.
    2. Remove the .bak from the other key by right clicking on it and selecting rename.
    3. Unfortunately, now you will have to change the .old to .bak
  • user-profile-service-failed-the-logon-3user-profile-service-failed-the-logon-4user-profile-service-failed-the-logon-5

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    Joe DiFiglia has written 137 Articles at C.O.D.


    In early 2000 I became increasingly frustrated with hardware review sites praising less then satisfactory products. The saying: “if you want something done right, do it yourself” applies here. I wasn’t satisfied, so I did it myself; and here we are years later.

    65 Responses to “The User Profile Service failed the logon. User profile cannot be loaded”



    1. James says:

      Thanks for this, it worked perfectly.

    2. G says:

      Awesome, this worked, would love to buy you a beer

    3. Rach says:

      Many thanks, Worked a treat. :-)

    4. stickmandave says:

      I dont have two s-1-5-21 files i do have the 1 .bak file do i just add .old to the s-1-5-20 file and so on from there?

    5. Alan says:

      Really frustrating problem but this worked like a charm. Thanks a million for the solution.

    6. Bill says:

      I encountered this problem after installing some updates. Your solution worked perfectly. Thanks for the fix.

    7. jose says:

      hey i don’t have that .bak file only the other long one without it.

    8. Sue says:

      i still have a problem! after enter safe mode, i still have to enter the account pssword. and it still says the same thing
      “The User Profile Service service failed to log on”
      “User Profilecannot be loaded”
      i only have one account on the laptop and the password is absolutely correct

    9. lpick says:

      Bless you for sharing this! It worked perfectly! I thank God I weeded a bunch of other sites and found this one before a needless restore!!!

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