running ? How much free disk space do you have now ?
How are you backing up your data ?
VAPCMD
Hi, I want to upgrade hard drive in my desktop, but need to keep working. Is it possible for me to connect the hard drive externally with a data adaptor, change it to my master, install the Operating system, and install what I need onto it, before I insert it into the computer?

Chowhound
Comic Vine
GameFAQs
GameSpot
Giant Bomb
TechRepublic