The Security/Action Center gets its data from the Windows Management Instrumentation (WMI)
Repository and uses a two-tiered approach for detection status. One tier is manual, and the other tier is automatic through WMI. In manual detection mode, Windows Security Center searches for registry keys and files that are provided to Microsoft by independent software manufacturers. These registry keys and files let Windows Security Center detect the status of independent software.
It is not uncommon for Windows Security Center to sometimes stop recognizing your antivirus (or firewall) and you may need to manually stop and restart it.
Press the WINKEY + R
keys on the keyboard or click
, and in the Open dialog box, type: cmd
or press Enter
If using Vista
and open an elevated Command Prompt
by typing cmd
into the search box, then right-click on cmd.exe and Run As Administrator
. Alternatively, you can go to
> All Programs > Accessories, right-click Command Prompt, and Run As Administrator
At the command prompt C:\>_
, type the following bolded text, and press Enter
after each line:net stop winmgmt
cd /d %windir%\system32\wbem
ren repository repository.old
net start winmgmt
It may take a few minutes to complete while WMI rebuilds the database. Reboot when done.