1)   Update Cleanup 1.02
Update Cleanup safely removes the backup files that were created when installing a Windows hotfix or service pack update. Removing the old backup files with Update Cleanup will free up hard disk space.

 2)   Disk Recon 4.0
Disk Recon allows you to investigate folder sizes, find duplicate files, examine your disk usage, monitor files and directories and more. New features include batch file renaming, batch attribute changing and file or image preview.

 3)   More Space 4.1
Safely reclaim disk space by deleting duplicates and file hogs. Identifies duplicate files, file hogs, folder hogs, temporary files and more.

 4)   More Space Sanitizer 5.0
Safely reclaim and sanitize disk space by deleting duplicates and file hogs. Identifies duplicate files, file hogs, folder hogs, temporary files and more.