Recently, Microsoft has confirmed that Windows 11 has some compatibility issues with some devices. According to Microsoft, these compatibility issues will affect Windows 11, version 21H2. For now, there are no fixes available for these issues. Microsoft is working on these issues and will provide possible fixes to these issues soon.

Windows 11 Known issues and problems

Microsoft has documented and confirmed the status of Windows 11 compatibility issues with: We will talk about these Windows 11 compatibility issues in this article.

1] Windows 11 compatibility issues with the apps that use non-ASCII characters in their registry keys

Microsoft has confirmed that it has found Windows 11 compatibility issues with the apps that use non-ASCII characters in their registry keys or subkeys. Such apps might not open when a user tries to do so or might cause several errors on Windows 11 OS. Microsoft has also confirmed that there are some chances of receiving a BSOD error due to these apps. The compatibility issues of Windows 11 with these apps might also affect the registry keys with non-ASCII values and the chances of repair of such types of registry keys are less. That’s why this issue is a matter of concern for Microsoft. Microsoft is currently investigating the cause of the issue and working on its solution. To safeguard the users’ experience, currently, Microsoft has applied a compatibility hold on such devices. It has also advised the affected users not to update their PC manually by clicking on the Update now button or by using the Media Creation tool until a fix has been released from Microsoft. Read: Windows 11 Problems, Issues with solutions, and fixes.

2] Windows 11 compatibility issues with Oracle VirtualBox

Another compatibility issue that Microsoft has confirmed is between Windows 11 and Oracle VirtualBox. Users might experience Windows 11 compatibility issues with Oracle VirtualBox when Hyper-V or Windows Hypervisor is installed on their system. The affected users might be unable to launch the Virtual box or receive an error if they try to do so. For now, Microsoft has applied the compatibility hold on the affected devices from installing Windows 11. Oracle is working on this issue and may release a compatible version of VirtualBox in October 2021, till then, Microsoft has advised the users to remove Hyper-V or Windows Hypervisor from their computers. The users who are not using the VirtualBox are also advised to uninstall it from their systems till Oracle fixes the issue. Microsoft has advised users not to update their computers by clicking on the Update now button or by using the Media Creation tool until the issue has been fixed from Oracle’s side. Users can check the status of the issue by visiting Oracle’s official website.

3] Windows 11 compatibility issues with Intel networking software “Killer” and “SmartByte”

Microsoft has also confirmed that Windows 11 has compatibility issues with Intel networking software “Killer” and “SmartByte.” This might drop the UDP (User Datagram Protocol) packets under some specific conditions. Due to this, users will experience performance and other issues with UDP-based protocols. This will cause some websites to load slower than usual. Users might also experience slow video streaming in some specific video resolutions. The issue might also slow down the UDP-based VPN. Experts at Microsoft are dealing with Windows 11 compatibility issues and problems and trying to provide a fix to the users as soon as possible. Users are advised not to ignore Microsoft’s advice and tips to safeguard their devices from these compatibility issues. They may fix it with the October Security Update release.

My PC meets Windows 11 requirements but says it doesn’t

If your Windows 10 PC meets Windows 11 requirements but says it doesn’t, then you may use any of these tools to reconfirm. If Windows Update does not offer you the Windows 11 upgrade, you could use the Installation Assistant or Media Creation Tool or go for a clean install using the ISO.