System Requirements

UltimateDefrag is compatible with Windows 11, 10, Windows 8, Windows 7, and Windows Vista (all 32 bit and 64 bit versions). Will also work with Windows Server Editions.

UltimateDefrag supports both FAT32 and NTFS file systems, with certain advanced functions unavailable on the older FAT32 format.

All RAID configurations are supported by UltimateDefrag. It will work as long as Windows identifies a "volume," such as C: or D:. We cannot guarantee placement files to faster performing outer tracks because many RAID controllers determine the physical locations of the NTFS virtual clusters. However, there is a general correlation between NTFS virtual clusters and physical cluster locations on the physical platters of hard drives in RAID configurations.

UltimateDefrag also works with SSDs (Solid State Drives), but because SSDs do not have the same physical structure restrictions as slow mechanical hard drives, the file placement methods will not improve performance. If you want to defragment your SSD, UltimateDefrag offers SSD-specific algorithms that defragment the virtual file system while limiting data transfer to reduce wear leveling.

External drives can be defragmented as well. Please note that complete defrags are not recommended for USB 2.0 drives owing to poor data transfer (simply use Fragmented Files Just), but UltimateDefrag shines with USB 3.0 and 3.1 drives, which are only marginally slower than internal hard drives. On USB 3.X drives, you can use all of the speed-boosting strategies.

UltimateDefrag will defragment all Windows operating systems (from Vista to Windows 11) as well as all NTFS disks in general.

It works on both PCs and Surface Tablets.

You can install UltimateDefrag on three different systems with a single license. If you have more than three systems, please acquire several licenses, one for each three systems.

It is not necessary to have an internet connection to install and activate your program. While online activation is the most efficient, we also offer an offline activation option that allows you to activate your license on a computer that is not connected to the internet. Simply choose offline activation and follow the simple instructions.