Error 0x80040154. Class not registered.

[Guest]

In the Windows Defender (Beta 2) window, I see the sollowing message:
Windows Defender definitions haven't been updated in 42 days.

I get the following message when I click the "Check for Updates" button
associated with this message:

Windows Defender was unable to complete the update.
0x80040154. Class not registered.

Any ideas?

 

[Guest]

Hello Dreamchaser,
Follow these steps, even though the original cause of the problem appears
not to apply.
http://support.microsoft.com/kb/915105

Go to Windows Update and check for available updates
I hope this post is helpful, let us know how it works ºut.
Еиçеl

 

[Guest]

Hi Engel,

Thanks for the suggestion. Tried it without any luck. Then I tried the
Windows Update and that didn't work either. And this used to work until a
month ago. I am convinced that the Windows Update access is disabled by Group
Policy settings on my corporate network. Thanks again for your suggestion.

 

[Guest]

Dreamchaser,

I have the same issue with my Windows defender. My computer is at home so
there is no group policy settings on my end and it still will not update. I
was hoping to find a solution here. I have uninstalled and reinstalled WD and
still have the same issue. I am lost!!!

 

[Guest]

I have two at home with 2000 SP4. One did this the other did not. I went to
windows updates and did a check, I noticed "BITS" download updated Windows.
After that the error went away and Windows defander updated fine.

 

[Guest]

Go to knowledgebase article at http://support.microsoft.com/?kbid=326686
(or search for keyword "kb326686" at microsoft.com).

Although I have Windows 2000, the instructions under Windows 2000 section
did not work for me. Being a desperate sort of person, I followed instruction
in the section "For users running Windows 98 or Windows Millennium Edition"
and Windows Update worked! It installed a bunch of security updates as well
as an update to Windows Defender (Beta 2). Now I find that my definitions are
up to date!

See if this works for you guys.