After cleaning, and recleaning, and cleaning, I found some things not functioning. I began restoring \\\"full backups\\\" in order. Power off atfter each one; then restart. After third restore computer refused to boot into Win OR DOS.

Have to send computer to IBM authorized repairer - who said MAYBE they could resolve problem. They have walked me through the BIOS security steps (which I had never enabled); thinking that would resolve the repeated request for a security password.

Sounds like Registry Booster2 is going to COST me a bundle in repairs.