Then once proven and working fine, install it on the main pc.
Just a comment, slightly off topic, but I must say some people go way too far, and do such crazy things I'll never understand with computers. Just reading this topic makes me laugh, no offense to anyone, but some things are just... beyond my reasoning. For example; djwayne, you unplug hard drives to separate Windows 7 from your other OS' so it doesn't crash them? That doesn't even make sense. You can't have an OS take out another OS, unless you go onto the other drive and delete sh!t you're not supposed to. If Windows 7 just up and crashed, the computer doesn't just go 'well, Windows 7 isn't loading, so I'm not loading these completely separate entities either. It's like saying if three people are standing in a room and one has a brain aneurysm, they all die. It's completely impossible.
Apparently you lack the experience of having a partitioned hard drive getting corrupted. It's very easy to lose partitions. I know, I've done it. !!
Like I said, partitions look good on paper, but they are not Fail Safe !!!!
That's the great thing about computers, you can set them up anyway you want.
The bad thing about computers is that they can have a mind of their own, and do unexpected things when you least expect it.
You do yours your way, and I'll do mine my way.
... you DO know that you can install Windows to separate hard drives without having to unplug them, and it works the exact same way as partitioning without the risk right? Also, I've been working with computers since the day Windows 95 hit the general public, and have never once had a partition error out, corrupt, or do anything that harmed another partition other than the one I was using.
Of course I know I can plug in more than one drive, but I don't want to, especially while working with a beta program. I have had it happen where I had two drives plugged in and went to re-install an os on one but both drives got formatted during the process, destroying all my files on the drive I wasn't planning on re-formatting. So to alleviate this problem, I make it a habit to keep my drives isolated, and only use one drive at a time, ESPECIALLY when installing a new OS.
All that has to happen is your file system gets corrupted and you lose everything on that disk. All you need to have happen is a mechanical problem with your hard drive and you're out of business...You've never heard of a hard drive failing ??
Another consideration is viruses on a hard drive, can hide out in your memory and infect any drive connected to it. I had one virus that would jump back and forth between hard disk and memory each time I'd try to uninstall it. It was a real bugger to get rid of. The anit-virus company explained it this way, "Trying to get rid of this virus is like trying to catch a monkey who keeps jumping back and forth on two trees. You chase him up one tree, and he jumps to another."