As a computer tech guy, two things that I find very important is the speed of solving a computer problem and also convenience. I don’t want to be wasting the whole day trying to solve one problem and the customer sees me as unprofessional. Convenience in a way I don’t want to tire myself in opening up dirty and dusty computer case, swapping hard drives and etc.

Very frequently I had to reinstall Windows for people. One very common annoying problem that I always face is the user lost his license sticker and I had to spend more time in retrieving the genuine Windows product key. There are a few ways to do it and most of them involves me having access to another working computer. For example, taking out the hard drive and fix it to a working machine, load the registry and retrieve the product key. Or I can boot up PCRegedit, load the registry and then decrypt the key from a working computer. All those steps are very time consuming and troublesome.

I tried very hard to look for a linux live CD that can retrieve the license key but I couldn’t find one. But here’s my opinion on the simplest and most convenient way to retrieve XP or Vista product key from an unbootable machine.All I need to do is set up a UBCD4Win livecd, boot up the computer with it and run either Joshua’s Key Reader or Keyfinder. Setting up UBCD4Win could take a while, so here’s a guide on how to create your UBCD4Win livecd.

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