win8 Windows defender fail to update

[Ci7]

it just come to my attention windows defender fail to update since a week ago

give error code 80070666 when trying to install, for whatever the reason windows failed to tell me about it. found out by myself

help?

[redvamp128]

You should be able to grab the latest from -- Microsoft Download and install from there...

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

[Ci7]

You should be able to grab the latest from -- Microsoft Download and install from there...

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

Thanks. but would that fix the problem at hand

edit:

didn't work :/

grunted i used mpas-feX64 because i am using 64bit windows

[Arkose]

Windows 8's Defender is based on Microsoft Security Essentials, so try the Security Essentials definitions.

[Ci7]

Windows 8's Defender is based on Microsoft Security Essentials, so try the Security Essentials definitions.

no dice :/

[Ci7]

i endup resetting Windows :(

least it is updating again now.

Case Closed.