Boot in Safe Mode after pressing F8 at startup and use System Restore to revert to a previoulsy working state.

Restore the registry to a previous working date.

Change the boot order to Floppy first (in Bios).

Boot up with a startup floppy disk and at the A:\> prompt type

C: (press enter)

Now type:

cd windows\command (press enter)

Your prompt should read C:\Windows\Command, correct?

Now type:

scanreg /restore (space between g and /)

Press enter, select a date PRIOR to the problem, press enter, wait for the process to finish and reboot WITHOUT the disk.

If you don?t have a start-up disk, download one from www.bootdisk.com.

Any luck?