newbie to partitions ??

[crittergeek928]

Hey,
I'm not used to partitions, so I need some advice. I've been helping my Dad work on cleaning up his pc. It is a Dell and it has a C drive of which only 1/4 is used. He also has a D drive which is saying is 100% full. I attempted to run a disk cleanup on both. It ran as it should on C, but when analyzing D, said 0 space could be gained. Is this normal? It doesn't seem right to me that any drive should be 100% full. If someone could educate me on this, I would surely appreciate it.
Thanks

[glc]

The D drive is probably the recovery partition, leave it alone. Dells ship with 3 or 4 partitions.

To confirm, what does Disk Management say about each partition?

[crittergeek928]

In the disk management there are 3 drives listed. The first has no letter assigned it is file system FAT,Healthy, EISA config 31mb. Second is C, NTFS, Healthy (system) 71.44gb 73% free. Third is D, FAT32, Healthy, 3.02gb, 0% free.
Does this seem correct?
Thanks for your help.

[glc]

Yep. The first partition is the utility/diagnostic partition. The second one is obviously your C drive. The third is the recovery partition and it should NOT have been assigned a drive letter and you MUST NOT touch it - do not add or delete ANY files.