Empty the Recycle Bin or Trash
Delete temporary files
Uninstall unused programs
Remove duplicate files
Delete large files you no longer need
Clear browser cache and downloads
Move photos, videos, and documents to external storage
Use cloud storage for backups
Clean up old system restore points
Remove unused apps from mobile devices
Compress files and folders
Run disk cleanup tools
Delete old email attachments
Remove offline maps and media downloads
Clear app caches
Archive old files you want to keep
Check storage usage to find space hogs