Vista can not check avast

[system]

After I updated vista system this afternoon, system can not check avast and display windows system alarm “can not find virus software on this PC”. why?help, thanks

[Tarq57]

Is this picture the “alarm” you get?
Does the Avast icon look normal, and spin when files are scanning?

[system]

Hi zjp

@zjp post:1

After I updated vista system this afternoon, system can not check avast and display windows system alarm “can not find virus software on this PC”. why?help, thanks

Don’t Panic!

Before you try doing anything else… Shutdown Your Computer - & - Start Up Again!

This Should Hopefully Fix Your Problem

[Lisandro]

Sometimes, Windows Security Center stop recognizing your antivirus or firewall… So, check your system time and date and also http://forum.avast.com/index.php?topic=23457.msg193534#msg193534

See also: http://windowsxp.mvps.org/repairwmi.htm