Disk boot failure

[shivg33k]

My friend for some reason had disconnected his IDE drive from his PC for an hour when he tried to reconnect the same it gave a disk boot error, it is the only drive connected to the PC (Primary master) other is his DVD ROM. He has some important files in his c:\ drive so i don't want to format his PC. we have tried disconnecting and reconnecting the IDE cable several times, same error comes,previously it was working fine

[shift]

look in the bios if the board detect the HDD

if not, then
# try connecting to Primary Master
# check your IDE cabe and power

[ayush_chh]

try connecting only the HDD and remove the DVD drive.......check if HDD is getting detected