Hi all! C drive on my computer is almost full, I keep receiving notifications regarding no or less space in C drive. I have Partitioned my hard disk into 3 parts. C drive is only 25 GB :/ D drive is 80 GB E is close to 150 GB I would like to increase my C drive space from 25 GB to 100 GB cutting E drive down . I am unable to do so through disk management. The option Extend Volume is grayed out. Please suggest an alternate way to increase the volume of my C drive. The OS I have is Windows 7 ultimate!! Thank you in advance.