That's exactly what I'm saying.
I'm running Vista Home Premium, service pack 1 NOT installed.
I can't download much of anything because virus scan is trying to update. Unfortunately that little arrow on the task bar just goes round and round, downloading NOTHING, meanwhile it makes it so anything else I try to download take 5 times as long as it should. Example: the "go to assist" That is a 900kb file, should take no more that 3 minutes with a 56k modem. It took almost 15 minutes and twice before I could get it downloaded I got "Web page has requested a timeout". It didn't pick up where it left off, so I cleared the temp file and started all over again. If I didn't clear the temp file then it said it was already there. Only part of it was but the Temp folder cannot distinguish that from finished, it goes by the file name, not size.
This also is slowing my page loading to a crawl. Pages load at normal speed until the arrow appears on the task bar. Real Time Scan remains in "Paused" mode. It will not allow me to change it. To answer an anticipated question, Yes I have administrative privilege and no my computer is not password locked.