Originally Posted by
SalVatore
Open the device manager and then toggle the CD/DVD-ROM drives tree and then right click the HP DVD-ROM to open it's properties. Now open the Drivers tab and click on Driver Details. This will list all the drivers that will work with that particular DVD-Rom. It will also pinpoint the location of those drivers (usually in c:\Windows/System32/Drivers). Locate and copy all of the drivers listed to a cd or floppy so that you can point the Vista installation to them. Hopefully this will work enough to actually install the OS.
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