When i turned off windows update the action center went crazy with a red dot in it and a balloon message like the world was ending. I went back and told it to check for updates every day but notify me before downloading and it still wasnt happy so I clicked to hide the message. I know sometimes M$ finds exploits and security issues and releases updates to resolve them but is win7 with no updates pretty tight or is it like vista and will have exploits found monthly if not more often? I had vista set to download and install automatically any important or recommended updates and now it takes literally right at 5 minutes from the time I see the Bios screen till the time its fully loaded and I have tweaked services and turned off all the bogus start-up programs. Win7 takes 1.5 minutes exactly from/to the same. Is windows update really necessary if you have a virus scan to detect viruses and a router with a secured network?