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 Tuning Windows performance

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.. contents::

   :local:

Disable 8.3 name support

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Check status in elevated shell::

  fsutil.exe behavior query disable8dot3

Disable 8.3 names on all volumes::

  fsutil.exe 8dot3name set 1

  fsutil.exe behavior set disable8dot3 1

https://support.microsoft.com/en-us/help/121007/how-to-disable-8-3-file-name-creation-on-ntfs-partitions

  How to disable 8.3 file name creation on NTFS partitions.

Disable last access time

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Check status in elevated shell::

  fsutil.exe behavior query disable8dot3

Disable last access time for all NTFS volumes (``1`` - user setting, ``3`` - system setting)::

  fsutil.exe behavior set disableLastAccess 1

  fsutil.exe behavior set disableLastAccess 3

https://docs.microsoft.com/en-us/windows-server/administration/windows-commands/fsutil-behavior

  Fsutil behavior

Exclude directories for Windows Defender

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* Open Windows Defender Settings.

* Click "Virus & threat protection".

* Click "Virus & threat protection settings".

* Scroll down to "Exclusions" and click "Add or remove exclusions".

* Click "Add an exclusion" and select "Folder" from the drop-down menu.

* Navigate to the directory to be excluded, or paste its path into the "Folder" text-box, and click

  "Select Folder".

Same from elevated CLI::

  powershell -Command Add-MpPreference -ExclusionPath "C:\tmp"

  powershell -Command Add-MpPreference -ExclusionProcess "java.exe"

  powershell -Command Add-MpPreference -ExclusionExtension ".java"

To show and delete settings::

  powershell -Command "Get-MpPreference | Select -Expand ExclusionPath"

  powershell -Command "Get-MpPreference | Select -Expand ExclusionProcess"

  powershell -Command "Get-MpPreference | Select -Expand ExclusionExtension"

  powershell -Command Remove-MpPreference -ExclusionExtension ".java"

https://support.microsoft.com/en-us/help/4028485/windows-10-add-an-exclusion-to-windows-security

  Add an exclusion to Windows Security.

https://docs.microsoft.com/en-us/powershell/module/defender/add-mppreference

  Modifies settings for Windows Defender from PowerShell.

https://docs.microsoft.com/en-us/powershell/module/defender/remove-mppreference

  Removes exclusions or default actions.

Exclude directories Windows Search Indexing

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* Open Windows Control Panel.

* Search for "index" and choose "Indexing Options".

* Click the "Modify" button

* Under the appropriate drive letter, navigate to the folder you want to exclude, and make sure it

  is unchecked.

* Double-check your work by verifying the directory shows up in the "Exclude" column of the "Summary

  of selected locations" table.