Update Microsoft Windows Defender manually

Microsoft makes manual download of update files easily accessible at this link:

http://go.microsoft.com/fwlink/?linkid=70631

This will download a file called Mpas-fe.exe
Try to save the file in a location that you can get to easily with a command prompt. (ie. C:\ )
Then, open a command prompt and run the program using the -q switch. It looks like this:

Mpas-fe.exe -q

The program will run quickly, and won’t give you any kind of confirmation that it has run or finished.

Open the Microsoft Windows Defender window to see what date your definition files have. This is how you can be sure that the update was successful.

IMPORTANT: The above info applies ONLY to 32-bit Operating Systems. For those of you using 64-bit platforms, see the full scoop here:

http://support.microsoft.com/kb/923159 

Posted under Freeware, Microsoft