Your whole post just gave a great technical reasons.
The answer is when your hard disk dies you get a WIndows 7 cdrom and install it. I use Windows 7 everyday and do not see these hundreds of problems and BSOD on an hourly basis. If it were that much of a piece of crap businesses would still be using XP. Remember MS tried to EOL in 2008, 2011, and now 2014. However now they are finally upgrading since Vista is done and WIndows 7 SP 1 has been released.
XP has thousands of bugs too and is not perfect. I hate supporting XP at work. Can't run a system file check is really annoying. The cdroms are not teh same version as our image so half the files are not even checked and can take an hour where you have to keep clicking ignore when it pops up freaking out saying it can't find this
I will even say it is one of hte most bug free OSes out there. I switched from Linux too it for that reason
Catalyst includes AMD chipset drivers as well. I use it on my AMD based system.
If you're buying the latest and greatest gaming cards, you're probably going to want DirectX 10 or 11, good multicore support, and an OS that can handle more than 3-ish GB of RAM.
XP supports older games like unreal tournament 1. Even now new games still have some XP support because gamers still use it for compatibility reasons or they hate change and assume XP is supperior to longhorn.
After slashdoters wrote posts like WIndows 7 == Vista SP 2 they had an effect. Many assume WIndows 7 must suck too because that lie was repeated so many times everywhere by XP loyalists. Many are hesitant to change thinking it is just as slow and bloated and that somehow XP will run faster 100% of the time (not understanding algorithm changes and extra optimizations from the compiler added to the kernel for newer cpus).
But this is bad as AMD based boards come with ethernet, wifi, and other devices that wont work with XP at all.
IT is Bush's fault! It all started under him
80% of computers use Intel's horrible integrated video chips. Unless you make Crysis you can't ignore this market.
That is rapidly changing.
THe ones in development have dropped 9 support. It seems 2011 was when the cut off started as Star Wars the Old Republic was the last game still made from that era that still supported XP. I think the new expansion with Rise of the Hutt Carterl is directx 11 only and has newer graphics options.
The vast majority of software companies sell Free Software. Free Software just means that the person receiving the code has a set of rights to use, modify, and redistribute it, which is the case for most bespoke software, which is what most software companies (and, indeed, most software developers) sell.
It is difficult trying to combine selling commodity off the shelf (COTS) software with Free Software, but fortunately for 'FOSS Shills' COTS software has never been more than about 10% of the total software market.
Never say you know a man until you have divided an inheritance with him.