Activating Windows 10 v1607 IoT Enterprise LTSB with Unified Write Filter enabled RRS feed

  • Question

  • We build systems with Windows 10 v1607 LTSB IoT Enterprise on them and the Unified Write Filter applied to the C: drive

    The following write filter exclusion is applied: file add-exclusion C:\Windows\System32\spp\store

    The product key is installed during an UnAttend step that occurs BEFORE the write filter is enabled:

        <settings pass="specialize">
            <component name="Microsoft-Windows-Shell-Setup" processorArchitecture="amd64" publicKeyToken="31bf3856ad364e35" language="neutral" versionScope="nonSxS" xmlns:wcm="http://schemas.microsoft.com/WMIConfig/2002/State" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">

    The write filter is enabled as the last step and the system is reboot a final time.

    At this point, we try to activate windows.  We do this:

    slmgr /ato    <-- This returns activation success


    slmgr /dli      <-- This returns "notification" (i.e. no longer activated)

    The only way we can get this to work is to activate windows with the write filter disabled!!  

    We also found we have to run BOTH of the above commands with the write filter disabled or the activation won't persist.

    This process (to activate with the write filter enabled) worked with Windows 8 Standard Embedded but no longer works now (with Windows 10 v1607).  

    Is there a different set of write filter exclusions we need now?  How do we fix this?!

    • Moved by Baron Bi Tuesday, July 3, 2018 8:01 AM More related to IOT
    Wednesday, June 20, 2018 3:05 PM

All replies

  • Hi,

    thanks for posting here.

    >>Activating Windows 10 v1607 IoT Enterprise LTSB with Unified Write Filter enabled

    Here is a document about using unified write filter in Win10. It may could be help of you.


    For your case which is more related to IOT, I will move it to Windows IOT forum for better support.

    Your understanding and cooperation will be grateful.

    Best Regards,

    Baron Bi

    MSDN Community Support
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    Thursday, June 21, 2018 1:18 AM