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Cumulative Update for October-INACCESSIBLE BOOT DEVICE

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The issue arises if the delta and the full cumulative update for October (KB4041691 https://support.microsoft.com/en-us/help/4041691) was installed same time. Those was released last week and if you configured your internal WSUS to automatically approve you will see this issue -> https://support.microsoft.com/en-us/help/4049094/windows-devices-may-fail-to-boot-after-installing-october-10-version-o

After installing this update you probably broke your machine with stop code: INACCESSIBLE BOOT DEVICE

let's calm down :) from my experience we could fix all instances with below procedure and do not attempt to run "automatic repair" in that case

Let's boot into 'Troubleshooting'? and open our lovely good old command prompt

 

Microsoft Support advises to get rid of the SessionsPending reg key. Let's load the software registry hive:

reg load hklm\temp c:\windows\system32\config\software

Delete the SessionsPending registry key (if exists):

reg delete "HKLM\temp\Microsoft\Windows\CurrentVersion\Component Based Servicing\SessionsPending" /v Exclusive

UPDATE: We saw few cases where above reg delete failed, in that case open regedit UI and delete the Exclusive key in sessionspending manually

Unload the software registry hive:

reg unload HKLM\temp

now lets pullout with DISM.exe the list of installed packages

dism /image:C:\ /get-packages

Checkout the ones which are state "Install Pending"? as one of those was causing the issues (highly like the last entries in your list)

before we can remove them we need to create a temporary directory first to where we can move the updates to

MKDIR C:\temp\packages

Now let's (re)move the "pending"? package(s) with the DISM command

dism /image:c:\ /remove-package /packagename:PACKAGEIDENTITYNAME /scratchdir:c:\temp\packages

be focused on the output of the command and if it completes successfully

Reboot your VM and it will reboot again and you can run Windows update afterwards as the faulty update was already corrected

Official Microsoft KB:
https://support.microsoft.com/en-us/help/4049094/windows-devices-may-fail-to-boot-after-installing-october-10-version-o

DISM Operating System Package Servicing Command-Line Options
https://msdn.microsoft.com/en-us/library/hh825265.aspx 

Comments

  • Anonymous
    October 19, 2017
    The comment has been removed
    • Anonymous
      October 24, 2017
      thanks for highlighting, I corrected this already
  • Anonymous
    October 26, 2017
    Thank you! Saved me from a reinstall.
  • Anonymous
    October 29, 2017
    The part where you type "dism /image:C:\ /get-packages" i get an Error: 1 error. what do i do now? (also, i disregard the comment i made earlier about my concern)
    • Anonymous
      October 29, 2017
      soory, i meant error: 1639
      • Anonymous
        November 15, 2017
        I believe you have a typo as error 1639 equals to "ERROR_INVALID_COMMAND_LINE"
  • Anonymous
    November 01, 2017
    Mine is now stuck on Uninstall pending. What do I do with this ??
    • Anonymous
      November 15, 2017
      did you completed the steps described in the article?
  • Anonymous
    November 12, 2017
    When executing >>dism /image:c:\ /remove-package /packagename:PACKAGEIDENTITYNAME /scratchdir:c:\temp\packages<< i get Error 0x800F0922. A run with /scanhealth give no results.
    • Anonymous
      November 15, 2017
      The comment has been removed