The main drive is the drive with your operating system on it.
Just insert your Vista DVD and start installation from Windows Xp, choose new installation and choose that hard drive where to want to install Vista (your second hard drive). Vista will make all required jobs including boot screen to choose which OS to boot. Before you start, please, bakc up all your data from your hard drive(s).
Yes, it can.
The Vista tool used to encrypt an entire hard drive is BitLocker Encryption.
There is no "DOS mode" for a hard drive, and it is not necessary to use DOS to format a hard drive. Vista's installer had a built-in partitioner and formatter.
a flash drive No, not a flash drive....he is talking about the hibernate functionality
There are several tutorials on YouTube which will show you exactly how to remove a partition. Removing a hard drive partition on Windows Vista will create an empty space that you can use to install a new partition. Be aware that it will also delete all data that is on the partition.
No. Vista ruins all windows(non-vista) and RAIDed partitions.
The speed of getting the next instruction to be executed. RAM nowdays is at least 100,000 times faster than accessing the same amount of data on a hard drive.
Yes. The SATA internal hard drive in Vista can be turned off, by turning off the feature in system BIOS.
Sounds like a problem with Windows XP. What you should have tried to do is take the original hard drive, put in the xp install disk, to the install, choose to format the hard drive, and then continue with the XP install. BTW: XP > Vista. Linux > XP. You should install Linux, instead of XP.
reformat the computer.
It's called a "flashdrive", "jumpdrive", or an external hard drive.