I've built 4 identical PCs for my office. I installed XP Pro SP3 on one of them. I used nLite to include an Intel AHCI driver and pre-configure a few things. I also used WinSetupFromUSB because none of these PCs have optical drives. I installed all of the other required applications for work on it and let it free within the office for a couple of days to make sure it was working well and everything was set up as needed. Then the goal was to clone that drive to the remaining three, which I did with Clonezilla. I assumed that it would work fine since all of these computers use identical hardware, so Windows shouldn't think it's on new hardware and crash with the usual BSOD when you move a drive into another PC. But, each of the cloned systems start to boot, they show the XP boot screen for a short time, and then a BSOD with error code 7B. To confirm that my clones were successful, I removed a cloned drive and installed it into the original "source" PC. It boots right up, the same as the original. I figured I would just do an XP repair installation and everything should be fine. I started the repair, it seemed to finish successfully, then on the first boot I got a BSOD with code 6C if I remember correctly. Rather than begin troubleshooting this new issue, I figured I'd go back to step 1. I tried cloning the source drive again, this time using Acronis TrueImage, and used the Universal Restore option, installed the clone in a new PC and get the same BSOD 7B. Then I tried running sysprep on the original installation. I put the drive in another PC, BSOD 7b. Put it back in the original PC and it boots. I have some boot CDs (BartPE, UBCD, and the like) that may help diagnose or repair this issue, but they are on CD and as I said before, none of these PCs have optical drives. I also don't have the capability of plugging in an optical drive, as the motherboard has no IDE ports and I don't have any SATA optical drives available. It may be possible to get these boot CDs on USB, but I'm not going to go through the trouble on the off chance that one of them *might* be of some assistance. I do *not* want to set up three new computers from scratch, installing and configuring all the required software manually. But I'm running out of things to try to get my clones to work. Any suggestions? Or more information required?