I have a Compaq Presario notebook running Windows XP Prof. I removed Norton using Revo Uninstaller which scrubbed the registry clean too. I also ran a registry cleaner to check for unwanted entries. But the system hangs going into sleep or hibernate. And I don’t dare using HP/Compaq’s system restore because it will just put Norton and a host of other unwanted programs back on my system. Did try using a legit copy of Windows XP Pro to try and do a repair but the screen keeps coming back that there’s an administrative password when there is none. Does anyone have any suggestions?
Turning off hibernate and sleep modes on a laptop is not really an option. Maintaining a windows session to move a laptop takes less time than shutting it down, rebooting, and finding all of the necessary files once more to show to someone. Sleep and Hibernate worked just fine while Norton was on the system.

I was in the middle of working with MS Word on Sunday when my computer started to make a loud whining sound. It then froze for a few minutes, the screen starting making these odd waving ripples, and then the computer shut down. When it tried to start up again, it said "error could not load OS" (or something to that effect). I tried hitting the restart button, but the error message popped up again. I then shut down the surge protector and restarted, and everything was fine. I was just sitting at my computer (Friday), and it started to whine and froze once again. However, it did not shut down, and unfroze after about one minute. I have heard this whining noise in the past, but it was always at night while I was going to sleep, not on the computer (i.e. there was no computer activity), so I never realized that there was anything to be worried about. Is my power supply going, or does the fan just need a good cleaning, and is there any diagnostic software that will let me know?