Originally posted by: stardrek
Just making sure, though I'd guess you did this - Did you make sure that Show updates checkbox was marked at the top of you Add or Remove Programs windows?
Although I have no idea why it wouldn't show up in there, even if you installed it via another route, I just thought I would make sure.
check this first.
If that doesn't pan out, use the $kbuninstall folders located under Windows.
Plan C:
drop to recovery console and navigate to one of the updates for instance:
C:\windows\$NtUninstallKB885250$\spuninst
Run "batch spuninst.txt" and it will uninstall.
Plan D:
Depending on the nature of the update you can also rename that spuninst.txt file to .bat and run it from within windows.
Plan E:
Install the last service pack again. It will uninstall every update that has been applied since.