Just the critical updates that Microsoft notified me needed to be updated. Didn't really pay attention to which one it was. Will try what you suggested.
[UPDATE - Computer will not respond to request for previouus configuation. BUT I think that doesn't help because evidently HAL.DLL is corrupt and I need to replace the file. I have it - just can't access C: drive from my startup floppy on a:]
But I still would like to figure out what I need to add to an MS DOS startup disk in the a: drive that would make it recognize the c: drive. Using all the DOS commands just goes back too far and my memory is failing me, but I tried to make a path command in an autoexec.bat file on the floppy in the a: drive, but that doesn't work. Does there need to be something in a config.sys file as well? --sgb