Unable to install Microsoft Security Essentials - Error 0x80070643

  1. wizard4119

    wizard4119 Member PCHF $Donator Bronze Member

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    When trying to insall MSE I get error "Cannot complete the Security Essentials installation. An error has prevented the Security Essentials setup wizard from completing successfully. Please restart your computer and try again. Error code:0x80070643" I restarted the computer and tried again, and got the same error message.

    Window 7 64 bit
     

    Attached Files:

  2. Crush

    Crush Active Member

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    Carry out a full Windows Update, then try the install again
     
  3. wizard4119

    wizard4119 Member PCHF $Donator Bronze Member

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    Only two items in Windows Update, MSE and Bing Bar. I declined Bing Bar, and MSE continues to give the same error message.
     
  4. Crush

    Crush Active Member

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    Ah you have the client already installed? I thought this was a new install

    Did you ever have any other antivirus apps installed on this machine? If so, try and remove them via the vendor provided removal tools (e.g. Norton Removal Tool)

    Have a look at this as well - http://experts.windows.com/w/experts_wiki/89.aspx
     
  5. wm4bama

    wm4bama Active Member Silver Member

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    http://windows.microsoft.com/en-us/...0070643-or-0x800706d9-enable-windows-firewall

    http://windows.microsoft.com/en-us/windows/i-cant-install-microsoft-security-essentials
     
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