How to use CMD/DISKPART to format or clean up your disk.
First you will need to open "CMD" on your computer.
Then you can start writing out some commands in the CMD terminal.
You will now see all the available disks in the system.
Its really important to choose the correct disk you want to clean up!
4. Write CLEAN, then press Enter.
You should now have a clean disk based on which drive you choose.