According to a discussion thread on Microsoft's official forum, some users experienced a decline in CPU performance after upgrading to Windows 1123H2 version, resulting in slight system lags. If users play games, the lag problem may be more obvious. Foreign technology website NEOWIN conducted a benchmark test and found that the CPU performance of Windows 1123H2 is lower than Windows 1122H2 in both single-thread and multi-thread, and the same situation exists even in the newly installed Windows 1123H2 version.
In addition to the problem of CPU performance degradation, some gamers have also observed that GPU utilization will also decrease, which results in game screen tearing. At the same time, CPU usage remains unchanged, and some games may pop up bandwidth-related error messages.
These problems are more serious for gamers, because FPS has seriously dropped, and this situation may be troublesome when playing the game.
After many discussion posts appeared on this issue, moderators of Microsoft's official forum also issued a response. Simply put, Microsoft discovered that this issue is related to the hardware-based virtualization function of Microsoft Defender. This function has a virtualization name but is mainly a security function used to isolate certain codes.
According to Microsoft's instructions, users need to execute the following command through PowerShell in administrator mode to reset Microsoft Defender, and then set it up again.
Here are the solution steps:
1. Open PowerShell in administrator mode (note: CMD will not work)
2. Execute command: Set-ExecutionPolicyUnrestricted
3. Execute the command: Get-AppxPackageMicrosoft.SecHealthUI-AllUsers|Reset-AppxPackage
4. Go to Microsoft Defender, Device Security, Kernel Isolation, enable memory integrity, and restart the system after enabling it to take effect.
5. After the above operations, the CPU usage will be relatively better, and Microsoft should fix it through patches in the future.