Fix "Isolated User Mode is off" preventing Hyper-V VM startup

Post date: Jan 03, 2017 1:1:51 AM

After trying to start a VM on my Windows 10 system, this error appeared:

Some Googling lead to this discussion.

In Windows 10, "Isolated User Mode" is not a Windows feature that can be enabled.

What did work:

• • Download KB3213522 (it's almost 1 gigabyte!).

  • Run the installer: windows10.0-kb3213522-x64_fc88893ff1fbe75cac5f5aae7ff1becee55c89dd.msu

  • Click "Yes".

  • Installation took about 20 minutes.

  • Click "Restart Now" to reboot.

What did not work:

Uninstalling the KB3206632 update:

• • Right-click "Start".

  • Select "Control Panel".

  • View by "Large icons".

  • Select "Programs and Features".

  • Click "View installed updates".

  • Click the update, and then click "Uninstall".

  • Click "Yes"

After 5 minutes of waiting to uninstall, I clicked a few times and an error appeared:

There is a PowerShell command I didn't try:

http://fredbainbridge.com/enable-isolated-user-mode-in-windows-10