Found the D drive -- CD reader -- was conflicting with the E drive -- CD/DVD reader/writer. Shop doesn't know why. Disconnected D: CD reader and E drive now works fine. Thanks all for suggestions.
What kind of shop is that, they just disconnect a drive and it’s fixed?
1) How many hard drives do you have?
2) If more than one, are the on the same IDE cable and are they daisy chained as master/slave on the master or primary channel on the motherboard
3) Do you have two optical drives?
4) If so, are they on the same IDE cable and are they set up as master/slave on the secondary channel on the motherboard?
The problem is if the jumpers aren’t set correctly on the drive, its address conflicts with another. I never put optical drives on the same channel as the hard drive.
I would note how all the cables are connected, how all the drive jumpers are set and start from scratch doing what I said.
You’ll get it to work.
BTW, you do have a backup?