Diskeeper Professional (v. 15) - maintenance (1 year) - 1 license

Diskeeper 15 Professional prevents performance-robbing fragmentation invisibly in the background without hogging system resources - so your PC is faster every minute of every day. With the Instant Defrag engine, any file fragmentation that wasn't prevented with IntelliWrite fragmentation prevention technology will be defragmented within milliseconds of occurring, you will never have to experience performance-robbing fragmented files ever again. Plus with the Efficient Mode intelligently determining which files, folders and free space to defrag, your PC will be optimized for peak performance and efficiency at all times.