That's disappointing. Booting with Windows XP isn't really an option for me. I've only got two hard disks, and I'm already booting between Linux (Work), and Windows Vista (Play). To top it off, my motherboard doesn't have any AHCI drivers for XP, so having to change a BIOS option just to reboot into XP would be a pain in the ass. Thanks for the help.
You don't need any other hard disks.. all you need to do is Partition an existing drivew to make your computer think you have another drive..
Vista does a fine job of doing that natively.
Also ALL hardware has both XP and Vista drivers (if Vista certified).. You just have to go to the Hardware manufacturer (Not the company that built the computer) for each component.. if you have Intel Northbridge or NForce Northbridge.. get your mainboard drivers from Intel, if you have a Geforce Vid Card.. go to NVidia and get the drivers.
You see.. You can load XP on to your Vista system using a disk partition, once you are done installing XP, you can boot to XP, but you have hardly any hardwaqre functionality.. this is due to XP not recognizing Vista hardware.. remember your system was built after 2005 (last version of XP released).. this is where you need the Hardware Drivers for XP.. most specifically the Ethernet driver..
If you can get your Ethernet card working, then most likely you can download drivers from Microsoft Update, at least until you can find them on your own.. but hoepfully you have already downloaded your drivers before attempting Dual Boot just so you can save time hunting while in XP.
Plus you can still have Vista on a large partition.. Like my current set up.. I have a 320 GB HDD, I have 260 GB assigned for Vista and 38 GB assigned for XP on the partitions.
You won't need much room for XP .. you can even get by with 10 or 12 GB for the XP partition.. but I was giving some margin of error for Swap Files and more older games..
Out of my XP partition of 38 GB, I have 32.7 GB free with XP fully updated, SFC OP with OP Enhancement pack, and Max Payne I installed... so now I have 32.7 GFB that I can play with on my XP partition.. plus I can use Vista to enlarge or shrink the partition without loss of information all I want.. If I need more room in XP, I can pull 20 GB from XP and wha la...
Anyhow.. You can Dual Boot your system, but what you have to have before you try is an XP Install Disk with Authentic installation Key... The XP disk has to be Bootable in order to install for Dual Boot.
Anyhow I hope that this information helps..
I do a lot of work on this.