2012 R2–We Couldn’t Complete the Updates

I’m setting up two brand new Windows 2012 R2 guests servers on a Hyper-V system. When running Windows Updates, I ran into the following frustrating error:

We couldn’t complete the updates
Undoing changes
Don’t turn off the computer

Well, after waiting an hour for this to reset, I went hunting for a solution. Thanks to my MVP friends, Boon Tee and Susan Bradley, I found out the cause and the fix! You can read Boon’s blog post here.

The issue is a conflict with some updates when your guest VM is configured as Gen2 virtual machine in Hyper-V and you have Secure Boot enabled for that VM. The fix is relatively easy:

  • First, you need to force a power off of your hung VM
  • Once it is stopped, go to the Hyper-V Settings for that VM, and disable (uncheck) the option “Enable Secure Boot”
  • Restart your VM and rerun your Windows Updates.

Please note, I generally do updates in batches – 10at a time, doing security updates firsts, then other other updates, then rollups, then .Net updates.

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