After some screw-ups with my pc's windows (ended up dual booting, totally unwanted), I am left now with one single windows 7, and also with only 1 space disk, which is the local disk C. So basically, now i have 1 420 GB disk C, and no disk D. Is this bad? And if it is, how do I create a new disk D, and move all my data from C to D. The final result should be having 1 disk C with max of 30 GB and 1 disk D with max 420 GB.