defrag

Disk Defragmenter Module

defrag

Disk Defragmenter Module


defrag

  • C:\Windows\system32\Defrag.exe /?

Output:


Defrag <Volumes> <Operations> [<Options>]

Volumes:
  /C | /AllVolumes      On each volume run only the preferred operations from
                        the given list of operations.
  /E | /VolumesExcept <volume paths>
                        Perform all the given operations on each volume except.
                        those specified. If the exception list is empty, this
                        behaves as /AllVolumes.
  volume paths          Specifies the drive letter followed by a colon, mount point
                        or volume name. More than one volume can be specified.  Run
                        all the given operations on each specified volume..

Operations:
  /A | /Analyze         Perform analysis.
  /B | /BootOptimize    Perform boot optimization to increase boot performance.
  /D | /Defrag          Perform traditional defrag (this is the default). On a tiered
                        volume, traditional defrag is performed only on the Capacity
                        tier.
  /G | /TierOptimize    On tiered volumes, optimize files to reside on the appropriate
                        storage tier.
  /K | /SlabConsolidate On thinly provisioned volumes, perform slab consolidation to
                        increase slab usage efficiency.
  /L | /Retrim          On thinly provisioned volumes, perform retrim to release free
                        slabs. On SSDs perform retrim to improve write performance.
  /O | /Optimize        Perform the proper optimization for each media type.
  /T | /TrackProgress   Track progress of a running operation for a given volume. An
                        instance can show progress only for a single volume. To see
                        progress for another volume launch another instance.
  /U | /PrintProgress   Print the progress of the operation on the screen.
  /V | /Verbose         Print verbose output containing the fragmentation statistics.
  /X | /FreespaceConsolidate
                        Perform free space consolidation, moves free space towards
                        the end of the volume (even on thin provisioned volumes). On
                        tiered volumes consolidation is performed only on the Capacity
                        tier.

Options:
  /H | /NormalPriority  Run the operation at normal priority (default is low).
  /I | /MaxRuntime n    Available only with TierOptimize. Tier optimization would
                        run for at most n seconds on each volume.
       /LayoutFile <file path>
                        Available only with BootOptimize. This file contains the list
                        of files to be optimized.  The default location is
                        %windir%\Prefetch\layout.ini.
  /M | /MultiThread [n] Run the operation on each volume in parallel in the background.
                        For TierOptimize, at most n threads optimize the storage tiers
                        in parallel. Default value of n is 8. All other optimizations
                        ignore n.
       /OnlyPreferred   When volumes are specified explicitly, defrag performs all
                        the given operations on each specified volume.  This switch
                        lets defrag run only the preferred operations, from the
                        given list of operations, on each specified volume.

Examples:
  Defrag C: /U /V
  Defrag C: D: /TierOptimize /MultiThread
  Defrag C:\mountpoint /Analysis /U
  Defrag /C /H /V

Return Code: 0


c:\>ver
Microsoft Windows [Version 10.0.19044.1288]
C:\Windows\system32\Defrag.exe
FileInfo
File Size210432bytes
Creation Time2021/10/06 22:53:34
LastWrite Time2021/10/06 22:53:34
ProductVersion10.0.19041.1
FileVersion10.0.19041.1 (WinBuild.160101.0800)
HashValue
MD5e2601e315e9a9837279a23963f5819b0
SHA15bb7fdaf33e556323a1152d36b0f9159cc53d291
SHA22441be16e34be8fd8be5beb97c491a2b771e3c7b0b14ff94361435d6bd
SHA2567a18dbbe6ca138389424a7b2c0135ba4a7541c33e0443227f3cf505b58b52a85
SHA384ac7671cdac495d43d49884151da54e6f01e4e9820556bedfd0479bbb6257ec4ae3dc44f4aa713dcf2bc61102d75a0073
SHA51266d899eb1f20df9096b10ee889512e7bfb51114665e7004d41d31ae89253b8972c2947deab71e5e20ba3bb8cd70f7f97b798b54b59642f26dcf1381ab0fcf052
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