Security Center says that Windows Defender is turned off

[Guest]

I have Windows Defender running normally on Windows Vista (the task-bar icon
is showing that Defender is on and running ok) but the Security Center is
telling me that Windows Defender is turned off and there is a button to turn
it on. However, when I press the Turn On button (even though I know it is
already turned on) I get the message: "Security Center is updating
definitions for Window Defender". After "searching for definitions" I get
the message: "There are no new definitions available to download for Windows
Defender". I'd like to solve this because the Security Center icon is always
showing me that I have a Security Alert.
*And I'm not alone, see: http://forums.techarena.in/showthread.php?t=714970

 

[Dave M]

hI cdv;

See if this older thread doesn't help you to resolve your problem:

http://www.microsoft.com/athome/sec...8150&mid=77fda0aa-8775-40f1-ba99-befb3eb58150

 

[Bill Sanderson]

That should do it--I've needed that fix on my own machines, and it worked on
one. Nothing I've tried has fixed the other one!

 

[Milo \(MSPSS\)]

Care to try this:

For Security Center having problem with Windows Defender
---------------------------------------------------------------

Right-click Command Prompt and Run as Administrator.

Then type the following command:

winmgmt /verifyrepository

If the system returns "WMI repository is not consistent",

type this command:

winmgmt /salvagerepository

The first time you run this it should fail:
" It will issue stop commands to the services causing it to fail. Just for
it to shutdown ". Run the command again. You actually may have to run it
couple
of times or more before it finally runs and completes on its own.

Restart your system.

 

[AM]

This fix worked like a charm for me, thanks very much!