Vista - security center trouble

my security center states that advast anti virus is turned off, when oi try to turn it on it says dose not trust it because id cannot be verified. never had this problem befor i did a window update. as far as i can tell advast on access scanner is running . any help would be great

Hi jgoudy5669 and welcome to the forums

Firstly, try restarting your PC. This can solve quite a number of issues. If this doesn't work, then try the following.
Click the start orb and type 'cmd' into the search box and press 'Ctrl', 'Shift' and enter/return simultaneously. After providing administrative credentials, you should now be at this prompt: 'C:\Windows\system32>'. You need to be at this prompt for the following to work.

1st Method

winmgmt /verifyrepository

If this reports the repository as inconsistent, run this command:

winmgmt /salvagerepository

2nd Method (this forces a repository re-build)

net stop winmgmt /y
cd %windir%\system32\wbem\
ren repository repository.old
net start winmgmt /y

After either method, restart your PC.

Hope that this helps. If not, try the Avast forums.
Dwarf

http://forum.avast.com/index.php