How can I clean up my hard drive to free up more disk space?

1. Uninstall unused programs.

2. Empty your recycle bin.
3. Delete large and temporary files.
4. Compress large files.
5. Use disk cleanup.
6. Disable system restore and hibernation.
7. Move files to external storage.
8. Delete duplicate files.
9. Disable unnecessary start up programs.
10. Defragment your hard drive.