Error with 0x80070643 installing Essential antivirus
When I am installing Microsoft Essential antivirus I receive this error 0x80070643 and I can not continue installing it.
See this post for steps to try and resolve this problem,up to and including contacting support if the provided information does not help.
Prior Security Software?
Any security software still installed?
A possible reason for this problem is that you have conflicting security software installed fully or partially on the PC. Remove all other security software from the PC.
You may need to use a cleanup tool to remove your prior security software:
Be sure to review this post:
If that fails to resolve the problem, open an email support case:
To open an email support case, start here:
~ Microsoft MVP Windows Live ~ Windows Live OneCare| Live Mesh|MS Security Essentials Forums Moderator ~
Windows Insider MVP (Security), Moderator Microsoft Community