VirtualBox no longer works after uninstalling Docker on Windows 10
After that work was done, I uninstalled Docker. Now my VirtualBox VMs are no longer working (some kind of VT-X problem?).
When you installed Docker it required you to also install Hyper-V
Can anyone advise why uninstalling Docker would cause this, and how to get VirtualBox working again? The machine is an E470 Thinkpad.
You need to uninstall Hyper-V. You won't be able to run a 64-bit guest within a VirtualBox VM until you do that
Hyper-V is automatically enabled on a Docker for Windows install.
Microsoft Hyper-V
To get VirtualBox running again, complete the following steps:
- Open the "old" Windows Control Panel -> Programs and Features
- On the left side choose "Turn Windows features on or off:
- Deselect "Hyper-V" in the list of features:
- Click "OK", let Windows deinstall Hyper-V and reboot at end
- After reboot you have to reinstall/repair your installation of VirtualBox with the original installer!
- Reboot again and it should work
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