How to Fix MSN Messenger Error Code 8000401a

When trying to login to MSN Messenger you may get the following error code: Error 8000401a. This is caused by a registry issue.

Instructions

  • If you are not comfortable with editing the registry please try my MSN removal guide here
  • If you are comforatable with editing the registry open the following key
HKEY_CLASSES_ROOT\AppID\
  • Backup Your Registry
    Delete the following key (I suggest using the find)
380689D0-AFAA-47E6-B80E-A33436FE3

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16 Comments (Newest on top)

  1. Abdul says:
    08/11/2009 at 9:21 pm

    Hi again

    i did the above step but it did not solve my problem the first time
    i restarted the system and did it a gain
    nothing changed
    but by searching in the web i found another code which is listed under HKEY_CLASSES_ROOT\AppID
    i deleted it and it resolved my problem

    i tried to find that code
    coz i did not save it
    but i could not

    thankyou anyway

    Abdul

    Reply
  2. Omer says:
    16/11/2009 at 11:02 am

    WOW, I have has so much trouble with this, and tried many other solutions, none helped except your solution thank you very much

    Reply
  3. stuck! says:
    02/12/2009 at 1:47 pm

    thanks for the tip, it was perfect in fixing the problem.
    p.s it was so easy, took like only 40seconds to fix. =]

    Reply
  4. Campbell says:
    02/01/2010 at 2:56 pm

    Hey wonderful advice THANKS!!!!!!!!

    Reply
  5. Roni says:
    06/03/2010 at 2:15 pm

    Magic
    Thankkkkkkkkkkkksss a looooooooooot

    Reply
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