Hi .... my older upgraded desktop (dual celeron with 2gigram) is running xp ... cause of virus problems I purchased w8.1 on cd .... this 32 bit cd does not boot in the cd drive ... it always attempts to boot, but just makes a few noises & quits trying after a couple minutes ... any other cd I install in the cd drive works fine ... the w8 assistant thing says all is good to go for w8 ... any suggestions ... thanx ... brian