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After updating from Windows 10 to the Anniversary Update (build 1607), I experienced issues with Hyper-V. I was not able to start my virtual machines.

An error message was:

Export failed for virtual machine 'name' (guid) with error 'A virtual disk support provider for the specified file was not found.' (0xC03A0014).

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Based on my troubleshooting steps, I recommend the following steps to reduce the upgrade pain.

Note: Since I already updated Windows 10 before getting into trouble, I was not able to test this in this order, so your feedback is important.

Before the update

  1. Shutdown all Hyper-V virtual machines.
  2. Go to Start > Turn Windows Features on or off.
  3. Uncheck Hyper-V and confirm the reboot question.

Update Windows

  • Update to Windows 10 Anniversary Edition, you can force this. Note that you have control of when you start the download, however, once the download was done I was not able to postpone the actual update.

After the Windows update

  1. Go to Start > Turn Windows Features on or off.
  2. Check Hyper-V and confirm the reboot question.
  3. After the reboot, start Hyper-V Manager
  4. Hyper-V Manager > Your virtual machine(s) > Right-click to update configuration version.
  5. Hyper-V Manager > Go to Virtual Switch Manager to re-create your virtual LAN and/or WIFI devices.
  6. In your VM configuration, configure the network device from the previous step.
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  • what you propose here is to re-install the Hyper-v and not an actually solution to the problem. I have similar problems with Hyper-v, its not work to me any more after the anniversary update of windows 10. I have made many to make it work again, and this one to re-install it, but NOT, its not work any more... – Aristos Aug 4 '16 at 11:43
  • Hey @Aristos, you are right that this is a workaround for the problem. I shared the problem and workaround in the hope that other people can save time and to hear if this also occurs for them. If it is a recurring problem a fix in Windows 10 itself might be the real solution. – Bernard Vander Beken Aug 5 '16 at 8:16
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This Anniversary update is defective and has many issues with hyper-v the solution to this post is to introduce a line on the BCDBoot using the following command:

BCDEDIT /Set hypervisorlaunchtype auto

But there are other problems with this particular version of Windows 10 so I recommend that you stay in version 1106 until it gets fixed

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  • There is no such thing as Version 1106... – Ramhound Nov 2 '16 at 11:47

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