I have a Compaq Presario machine with 900 processor and 768 Ram.When I go to WindowsUpdate it gives me a message of (!) Administrators Only.I have tried doing what it said by typing regedit in the command prompt and going into file and changing it to (0) but that doesn't work. I am in the administrative account with p2p network computer name of Compaq. Can you please tell me what I am doing wrong. THANKS.