Empty the Recycle Bin or Trash
Delete temporary files
Remove unused programs and apps
Uninstall large games you no longer play
Delete duplicate files
Clear browser cache and downloads
Move photos, videos, and documents to external storage
Use cloud storage for older files
Delete old system restore points
Run Disk Cleanup or Storage Sense
Remove large email attachments
Compress files and folders
Clean the Downloads folder
Delete old backups
Disable hibernation if not needed
Find and remove large files
Clear app caches
Move media libraries to another drive
Check for hidden files taking up space
Empty trash in file sync apps
Remove unused language packs
Delete old log files
Reduce space used by virtual machines
Shrink or delete unnecessary partitions