Based on the early preview build of Windows 11 (Windows 11 Preview Build 22000.194 to be precise), Microsoft themselves has released a list of the current known issues, which range from minor bugs to more significant issues with the user interface and compatibility.
Microsoft are understandably keen to stress that Windows 11 has still not been released, and so such issues are inevitable. They are still in the process of ironing out all the issues with the Windows Insiders they are testing the product with.
Checkout our Windows 11 System Requirements page for the latest info on what PC you’ll need to run the new operating system from Microsoft when it releases.
Windows 11 Known Issues With Build 22000.194
- Compatibility issues have been found between Oracle VirtualBox and Windows 11
Microsoft and Oracle have found a compatibility issue between VirtualBox and Windows 11, when Hyper-V or Windows Hypervisor is installed. You might be unable to start Virtual machines (VMs) and you might receive an error.
To safeguard your upgrade experience, we have applied a compatibility hold on these devices from installing or being offered Windows 11.
Workaround: To mitigate the safeguard, you will need to remove Hyper-V or Windows Hypervisor until this issue is resolved with an update Oracle plans to release in October 2021. You can check Oracle’s progress by monitoring their ticket #20536. If you are no longer using VirtualBox, uninstalling it should also mitigate the safeguard. Please note, if there are no other safeguards that affect your device, it can take up to 48 hours before the upgrade to Windows 11 is offered.
Next steps: Oracle is working on a resolution and is estimated to release a compatible version of VirtualBox in October 2021.
Note: We recommend that you do not attempt to manually upgrade using the Update now button or the Media Creation Tool until this issue has been resolved. If you are trying to upgrade to Windows 11, you might encounter an upgrade compatibility hold and receive the message, “VirtualBox. Your PC requires the latest version of this app. Click Learn More for more information on how to update this app.”
- Compatibility issues with Intel “Killer” networking software and Windows 11
Compatibility issues have been found between some Intel “Killer” networking software and Windows 11. Devices with the affected software might drop User Datagram Protocol (UDP) packets under certain conditions. This creates performance and other problems for protocols based on UDP. For example, some websites might load slower than others in affected devices, with videos streaming slower in certain resolutions. VPN solutions based on UDP might also be slower.
Next steps: Microsoft is working on a resolution and targeting its release in the October security update (October 12, 2021).
- Compatibility issues have been found between Cốc Cốc browser and Windows 11
Compatibility issues have been found between Cốc Cốc browser and Windows 11. Cốc Cốc browser might be unable to open and, on some devices, might cause other issues or errors.
To safeguard your upgrade experience, we have applied a compatibility hold on these devices from installing or being offered Windows 11. If your organization is using Update Compliance, the safeguard ID is 35891494.
Next steps: We are presently investigating and will provide an update when more information is available.
Note: We recommend that you do not attempt to manually upgrade using the Update now button or the Media Creation Tool until this issue has been resolved.
Microsoft has come out stating three issues as known issues with the build which they are currently working to resolve.
The following are quoted directly from Microsoft: