Security Essentials will not Run - Error is 0x80073b01


  • On Friday one of those bogus virus scans (itself a virus) popped up on my computer. This has happened in the past and I have always just gone back to a good restore point and restore the computer so this is what I did this time. I am running Vista Home Premium with Service Pack 2.<o:p></o:p>

    This removed the virus but now Security Essentials will not run.  I am getting the error 0x80073b01 when it tryts to start up.  I could not remove Security Essentials from the Control Pannel but did remove it using Fix It.  I then reinstalled Security Essentials and it still will not run.

    I have used Defender Offline running from a CD and it did not find any problems.  I have also run Hitman Pro Trial Version and it did not fix the problem (but it did find and remove two viruses).

    I have seen on the web that I am far from being the only one out there with this problem.  I would greatly appreciate any help you can give me.


    Monday, May 20, 2013 4:32 PM

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