AMD Athlon 2.0Ghz ABit AV8 Motherboard with ABit uGuru BIOS 1Gb RAM Drive 0: Western Digital Raptor 36Gb WD360GD Drive 1: Western Digital Caviar 160Gb WD1600JD Running Windows XP on Drive 0 I have read this topic (link below) and seem to be having a similar problem, however mine is on 2 separate hard drives. http://www.techspot.com/vb/topic18329.html It started when I tried logging onto windows, when logging in the system started the process then immediately logged me off. My first thought was that Windows had been damaged and proceeded to re-install. When re-installing the following warning came up… “Setup did not find any hard disk drives installed in your computer.” (Please note I have two different hard dives, although both made by WD) When I boot up however, it is clear that the hard disks are recognised. I followed the instructions of ‘RealBlackStuff’ and searched for the correct drivers on the WD website and copied them to floppy disks. http://support.wdc.com/download/index.asp?cxml=n&pid=1&swid=9 http://support.wdc.com/download/index.asp?cxml=n&pid=2&swid=9 I went through setup and pressed F6 and installed the drivers from the disks, then when these had been loaded the setup went back to installing Windows. When I went back to the install screen I was met by the same warning… “Setup did not find any hard disk drives installed in your computer.” I have checked all connections inside my computer and even swapped them round to see if any cables or ports were faulty, nothing made any difference. I have checked my BIOS and there does not seem to be any settings for SATA drives only IDE connections, the only one being the DVD drive on primary master (I am using BIOS for ABit AV8 motherboard). The setup also shows the hard disks on the RAID array menu, however no arrays have been set. I don’t even know at this point whether the problem is hardware or software, is it a faulty hard disk that is bringing the other one down too? These hard drives are both on their own port, neither is a slave. Is it my BIOS settings? Is it my motherboard? Or is it a virus?