Disk Defrag Parameters.


  1. Posts : 16,015
    Win 10 Pro 64-bit v1909 - Build 18363 Custom ISO Install
       #1

    Disk Defrag Parameters.


    Good evening,

    Code:
    C:\Windows\system32>defrag.exe /?
    Microsoft Drive Optimizer
    Copyright (c) Microsoft Corp.
    
    Description:
    
            Optimizes and defragments files on local volumes to
            improve system performance.
    
    Syntax:
    
            defrag <volumes> | /C | /E <volumes> [<task(s)>] [/H] [/M [n] | [/U] [/V]] [/I n]
    
            Where <task(s)> is omitted (traditional defrag), or as follows:
                    /A | [/D] [/K] [/L] | /O | /X
    
            Or, to track an operation already in progress on a volume:
            defrag <volume> /T
    
    Parameters:
    
            Value   Description
            /A      Perform analysis on the specified volumes.
            /C      Perform the operation on all volumes.
            /D      Perform traditional defrag (this is the default).  On a tiered volume
                    though, traditional defrag is performed only on the Capacity tier.
            /E      Perform the operation on all volumes except those specified.
            /G      Optimize the storage tiers on the specified volumes.
            /H      Run the operation at normal priority (default is low).
            /I n    Tier optimization would run for at most n seconds on each volume.
            /K      Perform slab consolidation on the specified volumes.
            /L      Perform retrim on the specified volumes.
            /M [n]  Run the operation on each volume in parallel in the background.
                    At most n threads optimize the storage tiers in parallel.
            /O      Perform the proper optimization for each media type.
            /T      Track an operation already in progress on the specified volume.
            /U      Print the progress of the operation on the screen.
            /V      Print verbose output containing the fragmentation statistics.
            /X      Perform free space consolidation on the specified volumes.
    
    Examples:
    
            defrag C: /U /V
            defrag C: D: /M
            defrag C:\mountpoint /A /U
            defrag /C /H /V
    
    C:\Windows\system32>

    I am curious as to what Disk Defrag Parameters you use on a HDD [ NOT SSD ].

    I have my HDD setup with the OS on C:\, Data on D:\, and System Images on S:\. Obviously they are ALL Backed Up else where using AOMEI.

    I have Shortcuts in a Folder in my Toolbar for each of the above.

    OS Drive:
    Code:
    
    %ComSpec% /k defrag.exe %SystemDrive% -u -v
    

    Data Drive:
    Code:
    
    %ComSpec% /k defrag.exe D: -u -v
    

    System Image Drive:
    Code:
    
    %ComSpec% /k defrag.exe S: -u -v
    

    ALL Drives:
    Code:
    
    %ComSpec% /k defrag.exe /C -u -v
    

      My Computer


  2. Posts : 4,525
    Windows 11 Pro 64-bit
       #2

    /B Optimizes boot files and applications but does not defragment the rest of the volume.
      My Computer


  3. Posts : 5,183
    Windows 11 Home
       #3

    It is best to defrag OS disk outside of Windows.
    Code:
    Boot Windows USB - Repair - Troubleshoot - CMD - type/enter
    c:
    cd windows
    cd system32
    defrag c: /u
      My Computer


  4. Posts : 16,015
    Win 10 Pro 64-bit v1909 - Build 18363 Custom ISO Install
    Thread Starter
       #4

    Thanks @TairikuOkami,

    TairikuOkami said:
    It is best to defrag OS disk outside of Windows.
    Code:
    Boot Windows USB - Repair - Troubleshoot - CMD - type/enter
    c:
    cd windows
    cd system32
    defrag c: /u

    This is very odd. I initially used shutdown /r /o /f /t 00 to Boot into the Advanced Options and continued from there. The CMD Prompt was obviously X:\>. For some reason I could NOT get to the C:\Windows\System32 Prompt, with it saying that it was Unrecognisable.

    I then Booted into the Installation USB, with the SAME results.
      My Computer


  5. Posts : 16,015
    Win 10 Pro 64-bit v1909 - Build 18363 Custom ISO Install
    Thread Starter
       #5

    Thanks @FreeBooter,

    FreeBooter said:
    /B Optimizes boot files and applications but does not defragment the rest of the volume.

    I do actually have that one [ /BootOptimize ] included, although it is NOT documented by MS as such. Technically, I assume that should also defrag the MFT and Boot Record files.
      My Computer


  6. Posts : 5,183
    Windows 11 Home
       #6

    Paul Black said:
    For some reason I could NOT get to the C:\Windows\System32 [/C].
    During boot, partitions might be assigned different letters, so it might be D, E, etc.
    Code:
    diskpart
    list volume
      My Computer


  7. Posts : 16,015
    Win 10 Pro 64-bit v1909 - Build 18363 Custom ISO Install
    Thread Starter
       #7

    Thanks @TairikuOkami,

    TairikuOkami said:
    During boot, partitions might be assigned different letters, so it might be D, E, etc.
    Code:
    diskpart
    list volume
    Disk Defrag Parameters.-dp.png
      My Computer


 

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