You don't need to access Windows Update. Ther are plenty of
other programs to fix your computer, it's all explained on
www.freecomputerrepairguide.com - take it look, it links to all
sorts of free tools.
You can download other SPYWARE programs, like spywareblaster or
spybot s&d. These are generally better than anything you'll
find at Microsoft.
Go to Microtrend on the Internet. Very good tool.
Those first two are for grade school kids, use Webroots
Spysweeper this one takes a while but found over 2800 malicious
adware/spyware on my PC that spybot never even checked for... it
costs but use the 30 day trial
The first time I ran Spybot S&D, I was surprised to see that
a couple of Microsoft programs, or at least sponsored or partnered
with Microsoft, were classified as spyware by this software. This
led me to the admittedly paranoid conclusion that, in all
probability, Microsoft wants to give us free adware removers to
clear the field for their own spyware. I'll stick to Spybot,
Adaware and Spyware Blaster, thanks very much. Good luck.