Guide to Installing and Booting Windows 8 Developer Preview off a VHD (Virtual Hard Disk)

 Guide to Installing and Booting Windows 8 Developer Preview off a VHD (Virtual Hard Disk)

I've posted before about my intense love for Booting off a VHD (Virtual Hard Disk). It's lovely. Of course, once Hyper-V on the client happens, it will matter less, but for now, here I am, a guy with a perfectly good, working Windows 7 machine who wants to also run the Windows 8 Developer Preview.
I could do a few things to play with Windows 8. I could:

• Try a virtualization solution, but it might not work, I may not have the drivers I need and it won't be as shiny as running "on the metal."
• Sacrifice a machine I have lying around. I'll probably do that at some point, but I'd like to try it out on my actual hardware that I use all day long.
• Swap out my C: drive and use my main machine. I don't have a tool-less case, and I'm also very lazy, so, um, ya.
• Dual boot. Dual booting may feel ninja but it ALWAYS ends on tears. And sometimes blood.
• Boot on real hardware from a Virtual Hard Disk.

Booting off a VHD is my current preferred solution for trying crazy stuff because the only speed hit I'll take is on the virtualized hard drive. Everything else is real hardware. I do this all the time with presentation VHDs and one-off daily builds of stuff.

Warranty

Of course, this is just some dude's blog. I puzzled this out and while booting to VHD is supported, messing with your boot manager - especially with Preview (that means, NOT RELEASE QUALITY) Software is a recipe for losing your job and a messy divorce. There's no warranty, express or implied. If you quake in fear from the following instructions, you need to STOP. It may be the case that you are actually a Non-Technical Friend and you don't realize it. Well, someone just told you. Please don't destroy your hard drive. I don't know you and I don't how how you got here. Stop calling. Click Here to join us on facebook