I've had Windows 7 Pro SP1 installed for a couple of years now, and I haven't had any problems with VCD, and I have more than a bare bones system, and I have other software installed. Look at what you have installed on your Windows 7 and/or 8. I'm willing to bet that it's something that you unknowning installed and it's conflicting with VCD. It could also be something that you have connected to your computer or have a piece of hardware that is in your computer conflicting with VCD, or it could be a combination of both. Even when you get the "Blue Screen", something is conflicting and/or something is corrupting the OS. Like it was mentioned earlier in this forum, if it's Windows 7 or 8, allot of people would be reporting it in.
If you really insist on figuring things out, I would suggest that you disconnect everything from your computer and taking out all the cards in the computer, except what is needed to run the computer. Then just install Windows 7/8 on that bare bones computer. Then install ONLY VCD and see if that works. If it does, then you know that you have a problem, and it's not VCD. If it still crashes, then you have a problem somewhere else, like something that isn't configured correctly with your computer, possibly even with your BIOS.
If you have Windows 8 BETA or Consumer PreRelease, remember it COULD be something is wrong with Windows 8 BETA or Consumer PreRelease. Remember that it's not the FULL release of Windows 8. Microsoft is not going to give you a fully functioning Windows 8 OS for FREE! Nothing in live, worth having, is free in life.
Personally, I will wait, for some time, before I even consider looking into Windows 8, when it's first released because I want to see what problems other people are having with Windows 8 first. If anything, I might get it after the first service pack is released. I use to be the first person to get the new Windows when Microsoft releases it, but I've learned buy my mistakes. Newer doesn't always mean better. 8)