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  • unable to uninsall - unable to update definitions - shows error code 0x800706ba - any help or advice appreciated.
    Thursday, June 10, 2010 1:48 PM

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  • To manually uninstall MSE use this guide provided by MVP Aiscer:

    1. Download the MSE installer for your Operating System from the Home Page: http://microsoft.com/security_essentials

    2. Save the file to your Desktop. This will ensure that you can find it easily after the download is done.

    3. Now press the Windows Key and R all at the same time. This will open the RUN dialog box.

    4. Make sure that  you delete any entries inside RUN. Now drag the MSE installer into the RUN dialog box.

    5. Depending on your Operating System, after dragging the file into RUN it should appear as any of the three below: 

             "C:\Documents and Settings\[YOUR USERNAME]\Desktop\mssefullinstall-x86fre-en-us-xp.exe"

              C:\Users\[YOUR USERNAME]\Desktop\mssefullinstall-x86fre-en-us-vista-win7

              C:\Users\[YOUR USERNAME]\Desktop\mssefullinstall-amd64fre-en-us-vista-win7.exe

    6. Now put a space in between the whole line and put /U as seen below:

            "C:\Documents and Settings\[YOUR USERNAME]\Desktop\mssefullinstall-x86fre-en-us-xp.exe" /U

             C:\Users\[YOUR USERNAME]\Desktop\mssefullinstall-x86fre-en-us-vista-win7 /U

             C:\Users\[YOUR USERNAME]\Desktop\mssefullinstall-amd64fre-en-us-vista-win7.exe /U

    7. Hit OK.

    If you are unable to uninstall MSE using this guide you can submit a support case here - https://support.microsoftsecurityessentials.com/

     

    If you wish to install MSE again be sure to uninstall all other antimalware programs first. If your computer was already infected with malware prior to installing MSE see this thread - http://social.answers.microsoft.com/Forums/en-US/msescan/thread/87058857-d181-4019-a723-efd9a49d9275

     

    If you need additional help with MSE or if you have additional questions the MSE forum is here - http://social.answers.microsoft.com/Forums/en-US/category/mse

     

    Jim


    Microsoft MVP Consumer Security - Forum Moderator - Live One Care - Live Mesh - Microsoft Security Essentials
    Thursday, June 10, 2010 2:24 PM
    Moderator