Bleeping Computer) that the problem was reported as fixed. I had seen it hours ago on various websites (e.g. Microsoft confirms: Virtualbox now compatible However, there are guides like here to install Hyper-V Server for Windows 11 Home as well. This officially only affected Windows 11 21H2 Pro, Enterprise or Education, as the Home edition does not offer Hyper-V.

The machines should then have been offered Windows 11. On the other hand, uninstalling Virtualbox caused Microsoft to lift the Windows 11 upgrade lockout for compatible machines. However, Windows 11 users who wanted to use Virtualbox could uninstall the Hyper-V server as a workaround. It then somehow didn't work out with the October 2021 fix for a compatible version of VirtualBox. But there was reader feedback there that Virtualbox 6.1.28 also did not make Hyper-V compatible on Windows 11. I had addressed the release of the version in the German blog post VirtualBox 6.1.28 freigegeben and also mentioned the fix for Windows 11 compatibility. There it says in the meantime 'fixed in 6.1.28'. Oracle has documented the status of the conflict between Virtualbox and Hyper-V in ticket 20536 No VM will start on Windows 11 host.

It was said at the time: Oracle is working on a solution and is expected to release a compatible version of VirtualBox in October 2021.

Microsoft had imposed a compatibility lock that prevented these devices from installing Windows 11 or offering the OS as an upgrade on such Windows 10 machines. This was because Microsoft and Oracle had identified a compatibility issue between VirtualBox and Windows 11 when Hyper-V or Windows Hypervisor is installed.Īs a result, virtual machines (VMs) might not start and an error would be displayed. Using Virtualbox together with Hyper-V was not possible in Windows 11. I had pointed out the issue in the blog post Windows 11: Known issues (October 5, 2021).

Windows 10 virtualbox host