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When trying to uninstall Microsoft Security Essentials on Windows Vista x86 via Programs and Features, I got an error message, code 8007066F, with no description. How can I remove Security Essentials?

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up vote 0 down vote accepted

Microsoft published a Fixit tool for this at KB 2435760. After running this, Security Essentials was removed, but I still needed to remove the executable from the startup list. I did this by going to Start-> type in MSCONFIG and pressing Enter. Once the MSConfig tool started, I clicked on Startup, and unticked 'Microsoft Security Essentials' from the list.

There is this Microsoft Fix It if the above link does not resolve the issue.

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