Empty the Recycle Bin
Delete temporary files
Use Disk Cleanup
Run Storage Sense
Uninstall unused programs
Move large files to another drive
Delete duplicate files
Clear browser cache
Remove old system restore points
Disable hibernation
Delete contents of the Downloads folder
Move photos, videos, and documents to cloud storage
Compress large files and folders
Clean up Windows Update files
Remove unused user accounts
Check and delete large hidden files
Change default save locations to another drive