Disk Defrag - the Intelligent Defragmenter by Auslogics

Auslogics Disk Defrag is a compact and fast defragmenter that supports both FAT 16/32, and NTFS file systems. It is supplied with an advanced optimization engine that will help you to improve system performance and prevent errors caused by file fragmentation.

Auslogics Duplicate File Finder Freeware

Daily computer activity inevitably leads to accumulating identical files on your computer, especially if you are an active PC user. You may download gigabytes of music and video files, documents and applications from the Internet or local network, share these files with your friends and not even realize how many same files may be collected on your hard disk from such activity.
Keeping unnecessary duplicates on your computer means wasting valuable hard disk space. Auslogics Duplicate File Finder will find and delete duplicate files so you won't experience lack of free disk space!