Re-size partition on windows server 2003?

[Avathar77]

one of the hard disks is running very very low on disk space.
C drive(system) is only 20GB and the other partition has 27GB left as free.
Is it possible/safe to resize partitions on a server?

 

[Avathar77]

so I just moved the Pagefile and then cleaned up some unnecessary folders, which gave me about 5 GB of space!
That is enough till the upgrade.
Thank you guys.
I might try the gparted method after cloning the drive, after the new server arrives