My computer keeps saying that it does not have SP2 installed and that I need to do a windows update. Every time I do the windows updates, it keeps showing the same update available for SP1, but the computer already shows SP1 installed. I tried DL SP2 and it goes through the motions and tries to install then says I need SP1 first and keeps showing the same update for SP1 over and over again, even though it is already installed. I am not sure what is going on and I need to get this fixed soon because I need to use this computer for work and I am freaking out. It is windows vista home premium. Thanks in advance for any help you can give.