I Wish I Could Speak German . . .
ChatterBank0 min ago
No best answer has yet been selected by Potatoman. Once a best answer has been selected, it will be shown here.
For more on marking an answer as the "Best Answer", please visit our FAQ.It cannot be done without additional software or reinstalling Windows.
It can be done with programs such as Partition Magic.
So, you have two options:
1) Back up everything you want to keep, then reinstall windows and define the partition sizes when you reinstall.
2) Purchase a copy of Partition Magic or equivalent and do it that way. You should still back up anything you can't afford to lose anyway!
To answer your other point, yes, once you have set up a new partition, Windows will view each partition as a separate drive.