It turns out that as a die-hard Linux user, there’s little more irritating than having to buy a new PC and a pre-installed Windows operating system when all you want is the computer to install Linux on. Why should one pay for a Microsoft operating system when you’re not going to use it?
It turns out that there is a clause in the Windows license [sic] that allows you to claim a refund on a pre-install provided that you can prove that you have wiped it from your sustem and that you return the install disks unused. That was quite hard to do, but nevertheless, some enterprising folk set up Windows Refund Day to encourage this to be done.