UltraDefrag Enterprise / Standard is a powerful disk defragmenter for Windows. It can quickly boost performance of your computer and is easy to use. Also it can defragment your disks automatically so you won’t need to take care about that yourself.
UltraDefrag has the following features:

– automatic defragmentation
– fast and efficient defragmentation algorithms
– safe environment preventing files corruption
– detailed file fragmentation reports
– defragmentation of individual files/folders
– defragmentation of locked system files
– defragmentation of NTFS metafiles (including MFT) and streams
– exclusion of files by path, size and number of fragments
– fully configurable disk optimization
– drive processing time limit
– defragmentation of disks having the specified fragmentation level
– automatic hibernation or shutdown after the job completion
– multilingual graphical interface (over 60 languages available)
– one click defragmentation via Windows Explorer’s context menu
– powerful command line interface
– easy to use portable edition
– full support of 64-bit editions of Windows

UltraDefrag can defragment both FAT and NTFS disks with just a couple of restrictions