I guess I did not make myself clear. I could not run ESET because I could not get past my log-on screen. While booting up, I could use the arrow keys to get into Safe Mode, Normal Mode, etc, but once the log-on screen appeared, the touch-pad and the keys were disabled. Thus I could not log in to Windows 7. Problem persisted despite removing and replacing battery, leaving battery out for a few minutes and replacing it, recharging overnight, etc. Checked with Lenovo forum; they suggested OneKey Recovery, which would return my machine to factory default. Then I would have to reinstall software and rebuild database from scratch. I have backups but the thumbdrives may have malware on them. Do you have any other suggestions? Thanks.