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

1. Uninstall unused programs.

2. Delete temporary files and unnecessary system files.
3. Move large files and folders to an external drive.
4. Use disk cleanup to delete system files.
5. Disable system restore and delete the associated files.
6. Compress large files and folders.
7. Disable hibernation (if applicable).
8. Use Windows’ built-in disk defragmentation tool.
9. Empty the Recycle Bin.