Should I reformat this HD?

Yes, I got rid of all of of the ones listed in your post and like I said before 300MB regained from it.

theres not much else i can think of, unless you have a hidden partition (you can look in DISK MANAGEMENT to see if your HDD is partitioned). and you could also clean out your browser cache and temp files.
other than that, i guess everything else is necessary files.

Well I checked and is all on one partition. Thank you for helping me out with this problem and toke some time from your day to deal with me. If I could rep you again I would and I learned a lot today from you and know I can carry that knowledge with pride. Again Thank you and have a nice day(or night depending where your at).

no problem. and you might want to run a virus scan also if you havent already.

Ran every scan possible and all came back negative. Well, I see you around.

No, and sorry, i never took into consideration how much data you would want to keep etc. Sorry m8.

its alright.

I haven't read the entire thread so I may be suggesting something already discussed. A rather unorthodox solution. Buy and install another HD. They are rather cheap now. You can get a 500GB from Newegg for about $50. Do a clean install of windows on the new hard drive. Backup everything first. especially your docs.,music,photos ect. During this time you will be able to continue using what you already have. Take your time and set your new drive up exactly how you want it. when you have it like you want it, go into bios and change the boot order to nstart booting into your new HD. Then you can run clean all in diskpart on the old drive and wipe it perfectly clean. Use it as a media drive to house your personal folders and for whatever storage you need. In the long run you will be better off and will get rid of whatever is filling up your current HD., and have plenty of space to use. I have had to do that before and it was a simple solution and later I was glad I did.