Dell Dimension 9100 - system tag 4v9hs1j.
Trying to reinstall WIndows XP.
SIngle SATA disc Western DIgital 2500 WD Caviar SE.
No SCSI devices installed at all.
Allows me to select the C: partition, which I deleted, but the next screen says "Your computers startup program cannot gain access to the disc containing the partition".