I've been haveing similar problems to what this person is experiencing in this forum. However not only does my Automatic Windows Updates not work, neither does there webiste. I click on Custom (and express doesn't wor either), and select all updates and goto download (it doesn't dl them, its like they've already been dled). And once it starts to install them it says it Fails. I need to install these updates because, my drivers for my mouse, monitor and mouse-pad need to be updated. Along with other Critical Updates.
I have done what Grinler told the other person to do, and here is my log. (I've gone through my HiJackThis log, and nothing comes up)
Files found with this application may be legitimate.
Only remove files that you know are malware related.
Checking the C:\WINDOWS folder
Checking the C:\WINDOWS\SYSTEM32 folder
Checking all directories under the C:\WINDOWS\SYSTEM32\drivers folder
C:\WINDOWS\SYSTEM32\Drivers\avg7core.sys: error finding UPX! header
Checking the C:\Documents and Settings\All Users\Start Menu\programs\Startup\ folder
Checking the C:\Documents and Settings\All Users\Application Data folder
Checking the C:\Documents and Settings\yanowhiz\Start Menu\programs\Startup\ folder
Checking the C:\Documents and Settings\yanowhiz\Application Data folder