Feature	Manual Defragmenter	Diskeeper Full Version
Requires Administrator Level Log-in	Mandatory. Must be manually run by someone with admin privileges.	Once scheduled (by administrator), it runs as a service in the background independent of the user-level log-in.
Mode of Operation	Manual operation only. Can only locally defragment one drive volume on a machine at a time.	Fully remote, automatic operation. Designed to easily defragment multiple drives/volumes simultaneously.
Scheduling	Manual operation only. No scheduling capability.	Full “Set It and Forget It”® automatic operation for any number of volumes/disks simultaneously across the network.
Smart Scheduling™	Manual operation only. No scheduling capability.	Yes.  Every server and workstation has different levels of fragmentation, at any given time.  This changes with various types of usage. Fixed schedules cannot optimally address these various levels found on the machines across a site, thus performance bottlenecks from fragmentation can still be present. Smart Scheduling eliminates fragmented files based on the actual needs of your disks to maintain peak system speed.
Networking	Not available. Cannot be remotely launched or controlled.	Superlative networking functionality. Server version can schedule groups of disks of any size on any and all disk volumes on computers, workgroups or domains throughout the network. Also enables direct connection to a specific computer on the network and remote execution of all Diskeeper operations including analyzing and defragmenting disk volumes, setting schedules, configuring exclusion lists and setting run priorities.
Speed of Operation	Slow. Runs at normal priority and will compete head-to-head with any application running at the same time.	Fastest Windows® defragmenter ever built. Defragments drives much more thoroughly than the manual defragmenter.
System Resource Use	High. System performance impacted if applications run during defrag.	Low. Can be set to run in the background unnoticed by end-users. Does not lock disk volume and runs by default as a low-priority process.
Simultaneous Operation	Not available.	Yes. Can be run on one or more volumes simultaneously.
Frag Guard® (Windows NT/ 2000/XP)	Not available.	Yes. Frag Guard helps prevent fragmentation in your MFT and paging files, greatly reducing the need to defrag at boot time (see next item).
Boot-time Defragmentation	Not available.	Yes. Boot-time defragmentation is the only Microsoft®-recommended way to defragment the MFT and paging files. It's fully schedulable and is vital to maintain peak system performance.
Exclusion Periods	Not available.	Yes. Exclusion periods allow you to restrict the times during which defragmentation will take place.
Fast Defrag of Large Disks	No. Defragmentation speed slows dramatically as the number of files on a volume increases.	Yes.  Extensive development has resulted in a defragmentation process that resists slowdown as the number of files on the volume grows.
Remote Install (PushInstaller™)	Not available.	Yes. Exclusive to Diskeeper (Server version only), PushInstaller enables easy installation of Workstation versions across the network with just a few clicks, where licenses are purchased.
Control to Pause/Resume Defragmentation Jobs	Not available.	Yes. Administrators have the ability to pause and resume existing run times/jobs locally or over the network.
Remote Scheduling	Not available.	Yes. Defragmentation schedules can be set on remote systems.
Remote Boot-time Scheduling	Not available.	Yes. Boot-time defragmentation can easily be scheduled on remote machines.
Command Line Interface	Not available.	Yes.  This is available to start defragmentation operation.
Control of Visual GUI Display	Not available.	Yes.  This gives you the choice of defragmenting with or without the GUI being displayed.