Still, there was a small scare afterwards. Windows Defender initially complained (above) that its service was stopped, and clicking the button to start it, produced my old friend, the message that "This program is blocked by group policy".īut that was a scam, everything worked fine in Windows Defender. Running Windows Defender the first time after re-enabling it in the registry You have to be logged on as an Administrator to change this field, restricted users can only view the current value.
Changing the 1 to a 0 was all that it took. On the computer with Avast installed, it was 1. If it is zero, then Windows Defender can run free. The critical registry key is DisableAntiSpyware. HKey_Local_Machine\Software\Policies\Microsoft\Windows Defender In brief, the fix was to run regedit and navigate to The solution that worked for me (Windows 7, 64 bit) was documented here: How to Fix Error Code 0x800704ec when Turning On Windows Defender. The article offers three solutions, I used the one that updates the registry, but, of course, not until I made a Restore Point. Despite the error message from Windows, Avast had not used group policy to disable Windows Defender. Please note that Action Center might have no red warning icon for several days after you've removed a third-party virus protection tool.Online searches turned up assorted suggestions for configuring group policy, but that wasn't my problem. Turn on virus protection (Important) or Turn on spyware protection (Important), or open Control Panel ( Windows Key+X has a nice shortcut), type action into Search field, clickĪction Center and then click one of the Turn on now buttons in Security section. Icon in Taskbar Notification Area (aka System Tray) and click
In that case, either click Action Center's white flag If you've previously uninstalled a third-party antivirus product (avast!, AVG, Norton/Symantec, McAfee or some other product), you might see a dialog that states that Windows Defender is turned off. "Uninstallers (removal tools) for common Windows antivirus software"
You have to follow the Avast advice to uninstall Avast: Windows Defender in Vista/windows 7 is an Anti-Spyware Program, not an Anti-Virus Program.īut from Windows 8 onwards Microsoft upgraded it to a full Anti-virus.
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