error Code 10

I`m at my wits end,I`ve tried all the info given by MS regarding this error
but still it persists.I have been using the computer I built for three months
now and everything has been fine,until last thursday when I inserted a disc
into my DVD-CD -RW combo drive-- World Book 1999 deLuxe and went to my
Computer and the drive had disapeared.So I went to Device Manager to see if
the driver was still installed and there it was "This device could not start
Code 10" and i have tried everything ,even to the extent of buying a new
drive,but to no avail, even with the new drive it will not install the driver
for the device.Is the only thing left to do __format the drive and start
again?????? Please someone help!!!!!!!!!!!!
Rgds John