Installing Docker Desktop 2.3.0.5
broke my VirtualBox 6.1.14
Windows guests (Windows host)
Even after uninstalling Docker they were still broken
- Tried uninstalling
Windows Subsystem for Linux
- Resolution was to uninstall the Windows Feature
Virtual Machine Platform
I arrived at the solution by checking Event Viewer
=> Setup
to discover what changes Docker installer had made
Selectable update VirtualMachinePlatform of package Microsoft-Windows-HyperV-OptionalFeature-VirtualMachinePlatform-Disabled was successfully turned on.
Initiating changes to turn on update VirtualMachinePlatform of package Microsoft-Windows-HyperV-OptionalFeature-VirtualMachinePlatform-Disabled. Client id: DISM Package Manager Provider.
Notes
- Guests were running HyperV paravirtualisation
- HyperV was already uninstalled when started troubleshooting