As for your spyware issue, use Ad-Aware, MSAS and/or Spybot Search & Destroy
to remove it.
Microsoft Anti-Spyware (beta)
http://www.microsoft.com/athome/security/spyware/software/default.mspx
Ad-Aware:
http://www.lavasoftusa.com/
Spybot:
http://www.safer-networking.org/en/index.html
Good sites on how to install and use Spybot -
http://www.safer-networking.org/en/tutorial/index.html
http://tomcoyote.com/SPYBOT/index1.php
Also download a winsock repair tool, to have just in case cleaning up
anything found breaks it -
Winsock repair tools:
LSPFix- all versions of Windows
http://www.cexx.org/lspfix.zip
Winsock2 Fix- Win98, ME
http://www.bu.edu/pcsc/internetaccess/winsock2fix.html
LavaSoft- all versions of Windows-
http://digital-solutions.co.uk/lavasoft/whndnfix.zip
More information here:
http://www.spywareinfo.com/
http://inetexplorer.mvps.org/Darnit.html
http://www.doxdesk.com/parasite/ - runs a little script when loading page to
check for common parasites
If no joy, in IE go to Tools...Internet Options...Advanced tab, Browsing
section, uncheck "Enable third-party browser extensions", click Apply, click
Okay, reboot. If that solves your problem, then more troubleshooting is
needed to find out exactly which program, or Browser Helper Object (BHO) is
causing this problem. You don't want to leave it at that, as some BHOs are
useful or necessary - like Adobe Acrobat for reading .pdf files or an
essential component of Norton AV. Get BHODemon -
http://www.definitivesolutions.com/bhodemon.htm - read all about BHOs.
Disable all items, and then gradually replace one or two at a time to narrow
down the culprit.
Or if you have IE 6 SP-2 you can do this within the browser:
How to manage Internet Explorer add-ons in Windows XP Service Pack 2
http://support.microsoft.com/default.aspx?scid=kb;en-us;883256
If all the above fails, then the problem could be something new that the
spyware cleaners above don't have in their databases yet. In that case....
HijackThis direct download:
http://www.spywareinfo.com/~merijn/files/hijackthis.zip
Tutorial on how to use HijackThis:
http://www.spywareinfo.com/~merijn/htlogtutorial.html
Then post it's output log to the forum here for analysis and feedback by the
parasite experts:
http://www.spywareinfo.com/forums/
Or the other HijackThis Logs forums listed here:
http://www.spywareinfo.com/~merijn/forums.html
Or try this program to get some of the most nasty malware:
CWShredder direct download:
http://aumha.org/downloads/cwshredder.zip
An alternate resource for all of this and more:
http://www.aumha.org/secure.htm
As for your automatic Windows Updates issue, I'm not familiar with Win2K,
but in XP in Control Panel, there's an applet called "Automatic Updates"
where you can control how the OS updates itself via several options:
"automatic" where it does it all for you, and three others - one where it
will download, prompt, but not install, one for just notification of
available updates, and one to disable the feature altogether.