I've looked everywhere I can think of to try to figure out what's wrong with my startup process...perhaps the virus changed some key files? Before closing down for the night, however, I decided to work on capturing the screen message that pops up so quickly when I try to start Windows normally. I used my iPhone to take a movie of the moment and look back frame by frame - here is what the message says:
"A problem has been detected and Windows has been shut down to prevent damage to your computer If this is the first time you've seen this stop error screen, restart your computer. If this screen appears again, follow these steps:
Check to be sure you have adequate disk space. If a driver is identified in the stop message, disable the driver or check with the manufacturer for driver updates. Try changing video adapters.
Check with your hardware vendor for any bios updates. Disable bios memory options such as caching or shadowing. If you need to use safe mode to remove or disable components, restart your computer, press F8 to select advanced startup options, and then select safe mode.
Technical information:
***STOP: 0x000000"
Any ideas? Thanks very much for all your help,
Bill