Boot Up Error / 2000 Professional

SystemRoot/System32/Drivers/asc3550f Erro status was oxc000012f Windows 2000 Professional system I recently purchased this computer system ($50) for my Mother who simply does e-mail and games (not on line games). I had to remove malware at first (can't remember the name) and had to install msconfig as 2000 did not have this feature. Now upon booting up, a window pops up with the above message, however upon clicking on the small x to close the window, then computer boots up and she uses it. Nothing else happens. I decided to go into the WINN file and found a folder (drivers) and actually saw the little driver file "asc3559f" and was going to simply remove it by copying it to another folder, shutting down and trying to reboot but must admit, I chickendd out. She lives about 100 miles from me so I didn't want to cause trouble and left it alone and I am now beginning to think since it boots after closing the pop up window; leave well enough alone.