Block or Unblock Legacy File System Filter Drivers in Windows 10

    Block or Unblock Legacy File System Filter Drivers in Windows 10

    How to Block or Unblock Legacy File System Filter Drivers in Windows 10
    Published by Category: Hardware & Drivers
    24 Mar 2017
    Designer Media Ltd

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    Brink's Avatar
    Administrator

    Posts: 25,665

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    How to Block or Unblock Legacy File System Filter Drivers in Windows 10

    information   Information
    Starting in Windows 10 version 1607, administrators and driver developers can use a registry setting to block legacy file system filter drivers. Legacy file system filter drivers are drivers that attach to the file system stack directly and don't use Filter Manager.

    For optimal reliability and performance, it's recommended to use file system minifilter drivers instead of legacy file system filter drivers. Also, legacy file system filter drivers canít attach to direct access (DAX) volumes. For more about file system minifilter drivers, see Advantages of the Filter Manager Model. To port your legacy driver to a minifilter driver, see Guidelines for Porting Legacy Filter Drivers.

    For more details, see: Blocking legacy file system filter drivers (Windows Drivers)


    This tutorial will show you how to block and unblock legacy file system filter drivers from loading or attaching to storage volumes in Windows 10.

    You must be signed in as an administrator to be able to block and unblock legacy file system filter drivers.


    Here's How:

    Note   Note
    The .reg files below will add and modify the DWORD in the registry key below.

    HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Session Manager\I/O System

    IoBlockLegacyFsFilters DWORD

    0 = Unblock
    1 = Block



    1. Do step 2 (block) or step 3 (not block) below for what you would like to do.


     2. To Block Legacy File System Filter Drivers

    A) Click/tap on the Download button below to download the file below, and go to step 4 below.

    Block_Legacy_FS_Filter_Drivers.reg

    download


     3. To Not Block Legacy File System Filter Drivers

    NOTE: This is the default setting.

    A) Click/tap on the Download button below to download the file below, and go to step 4 below.

    Unblock_Legacy_FS_Filter_Drivers.reg

    download

    4. Save the .reg file to your desktop.

    5. Double click/tap on the downloaded .reg file to merge it.

    6. If prompted, click/tap on Run, Yes (UAC), Yes, and OK to approve the merge.

    7. Restart the computer to apply.

    8. You can now delete the downloaded .reg file if you like.



    That's it,
    Shawn


  1.    05 Apr 2016 #1
    Join Date : Oct 2014
    Arnold, MD
    Posts : 29,598
    Triple boot - Win 10 Pro, Win 10 Pro Insider (2) - (and a sprinkling of VMs)

    @Brink

    Shawn, should this be 1507 ?

    Starting in Windows 10 version 1607,

    TC
      My ComputersSystem Spec
  2.    05 Apr 2016 #2
    Join Date : Oct 2013
    Posts : 25,665
    64-bit Windows 10 Pro build 17046
    Thread Starter

    Hello Dick,

    Nar, it's actually for the next version of Windows 10 to be released soon.
      My ComputersSystem Spec
  3.    05 Apr 2016 #3
    Join Date : Oct 2014
    Arnold, MD
    Posts : 29,598
    Triple boot - Win 10 Pro, Win 10 Pro Insider (2) - (and a sprinkling of VMs)

    Quote Originally Posted by Brink View Post
    Hello Dick,

    Nar, it's actually for the next version of Windows 10 to be released soon.
    Ah, the Anniversary Doo-Dah thing! Maybe they'll drop a preview morsel soon. Thanks. TC
      My ComputersSystem Spec

 


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