Uh-oh.............the dreaded "dynamic disks", which you are likely going to have to undo. They are generally bad news and to be avoided.
You will need Partition Wizard bootable disk to convert from dynamic.
It's the last link at the bottom of this page. Download it and burn it to disk. http://www.partitionwizard.com/download.html
Get your data backed up before you do anything else.
HP shipped that thing with 4 partitions, the maximum allowed normally. You tried to create a 5th partition and apparently ignored a warning that it would result in dynamic disks. Bad move.
I'd get my data copied elsewhere and re-think my partition ideas. If you MUST have 5 total, you will have to use "logical" partitions.
I don't know if the dynamic disk situation is contributing to the disk filling up, but regardless----copy your data to a safe place. Maybe all of your data will fit on C, at least temporarily?
There are ways to get rid of the System Partition and you may not need the "HP tools" partition, but worry about that after you get rid of dynamic.