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
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.