Warning: I'm not very tech savvy, so the following is written in a very plain language.
I have Vista installed on my current main harddrive, but wanted to access an old drive which also happens to be a drive with XP installed on it. The problem is, if I hook up the old drive and try to access it through Vista, I can't seem to open the C: partition. It simply isn't there. I'm guessing it's because you can't open the partition which has the OS installed on it while in another OS.
I've tried removing the Vista drive and running the XP drive as the master, but it doesn't seem to be able to recognize the drive as a boot device. The XP drive uses an IDE cable while the Vista drive is on SATA. I tried making the IDE device primary boot device, but it just won't boot from it.
What gives?
And I'm sorry if this is all gibberish.