From the explanation i got from the owner, he tried deleting the IDE drivers in order to cure a problem of the LG dvd-rw drive taking 30 minutes to burn a CD. I have found out there is a big problem with this LG 840 dvd burner that H-P has a update for. Aparently the update does not fix the problem but the guy tried the IDE delete in device manager when he read that it would help the problem.
By the way this is a Compaq Presario SR1750KR computer. Intel 3.06, 250 Gig Sata drive, LG 840 dvd-rw, on a ECS RC410-M motherboard. Nothing is changed from factory settings and no hardware added other than a kingston matched pair of 1 gig memory sticks. He also did not make a recovery CD and the restore does not fix the problem no matter how far back you go. It says restore is successful but the problem remains. I can get into safe mode and the error does NOT occur there. I am at wits end trying to find this problem.
I was hoping someone else could enlighten me before i tell the guy we will need to buy a XP cd and start from scratch on the computer.