I have BT5R3 currently dual booting with Windows 8. I want to delete BT5R3 completely off my computer without losing any of my files on my computer, as I have tons of work things on it that I am not allowed to copy. I am new to this and I need help doing so. I am a COMPLETE noob, so pictures or a video would help me best!

Here is a picture of my Disk Manager. I have not IDEA how to use it AT ALL. http://i41.tinypic.com/jiexxl.png

I do not know what else I need to post, so if you need more information, I am glad to upload it.

Can I just format this drive? http://i40.tinypic.com/2ivbos0.png
It seems to be my BT5R3 drive. And then, how do I make it like BT5R3 was never here?

How are you now booting the system? Are you using the Grub bootloader from Backtrack to boot both? or do you select which drive to boot from the BIOS? From the image you posted, it looks like you have two hard drives, can't really see clearly. If you are booting both from Grub, you need to first restore the windows bootloader to the master boot record. Maybe booting Backtrack and posting the output of the command:

fdisk -l(lower case Letter L in the command) run as root or sudo would help. That or someone with better vision.

I am using GRUB. So I need to know how to fix everything back up. Without using a disk, as I have no more. I have a USB though.

Do you have a windows 8 isntallation CD/DVD or is this an OEM that came without it?
Did you create a Recovery disk for windows when you first booted the computer?
If you have the installation DVD, that would be the best method. If you have a Recovery CD/DVD, you shoud be able to boot it and there should be a repair option on it which can be used to repair the master boot record.
Are you still able to boot Backtrack? How big is/are the Backtrack partition(s)?
If you don't have an install or recovery CD, you could shrink Backtrack and just use Grub to boot.
You forgot to post the fdisk output.