Yes, you can create other partitions on C: drive.
Right click Computer and select Manage,
Then select Disk management,
open full screen to see all your drives,
Right click on C: drive and select Shrink Volume.
You will be shown how much you can shrink it,
You can change to what ever size you want.
This creates an unallocated space that can be made into a valid partition.
"Jason" <Jason@discussions.microsoft.com> wrote in message
>I was wondering if it is possible to partition my c drive.
> My concern is that it also has the OS on it
> My question is can this only be done from initial setup, i am aware there
> are programs that supposedly do this for active partitions but I have
> seen them in use, Do they work? or can this be done safely using windows
> I have 230GB of spare room and need to store a large amount of data
> buying an external HD
> Thanks Jason