Windows KB4015217 Windows Server 2016 Windows 10 VMware Inaccessible Boot Disk

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There have been recent reports that the Windows 10 and Windows Server 2016 patch KB4015217 breaks VMware virtual machines (VM), leaving them inoperable and a boot error of “Inaccessible Boot Disk”. The Windows KB4015217 patch is called “Cumulative Update for Windows 10 and Windows Server 2016: April 11, 2017”. While looking at the KB4015217 Release Notes, it looks like it includes a number of driver changes

How To Boot To Your VM

To get back into your virtual machine, you can try the following steps:

  • Boot into Windows 2016 (or Windows 10) ISO.
  • Go to Repair
  • Go to Tools to get a command prompt.
  • Confirm the drive letter for the Windows image. Usually D: –> dir d:
  • Run the following to view the installed packages which will also show a date of install.
    Dism /Image:D:\ /Get-Packages
  • Find the package(s) that were just installed by date. Run the following command on each package:
    example: dism.exe /image:d:\ /remove-package /packagename:Package_for_KB4014329~31bf3856ad364e35~amd64~~
  • Reboot.

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