No specific info about version 2.21. Please visit the main page of Defraggler on Software Informer.
Defragment and compact Windows registry to improve system responsiveness.
Boost hard disk performance by defragmenting them.
Restores original factory FAT32 partiton for WD external drives.
Defragment hard disks to improve the file-access speed.
It allows you to convert NTFS to FAT32 without losing data.
Comments (35)
The Windows 7 System tool is good enough for me.