Microsoft recently admitted two bugs in Windows 11, which may crash applications or slow down your entire system. With the latest security update (KB5008215), Microsoft has fixed these two known issues, emphasizing how serious this issue is. In its patch Tuesday update log, Microsoft confirmed that the fix now applies to all configurations.
A bug in Windows 11 discovered as early as August 2021 may slow down the entire system by affecting the writing or reading speed of the storage drive. This is particularly frustrating because almost all storage drives are affected, and it also causes performance issues with applications installed on the system drive.
If your device is affected, the operating speed of the storage drive maybe 50% slower, with the write speed being the most affected. November 22, Microsoft released an optional cumulative update, which confirmed that the problem has been resolved under the listed fixes, and explained that the problem only affects Windows drives. This problem only occurs when the NTFS USN log is enabled. Note that the USN log is always enabled on the C: disk, Microsoft pointed out in the update log.
With the arrival of Patch Tuesday, Microsoft has finally rolled out the fix to everyone running Windows 11 21H2. Since this is a security update, it will be automatically downloaded and installed according to your Windows Update settings. In the release notes, Microsoft explained that it also fixed an issue that could prevent applications (such as Kaspersky applications) from starting properly. This happens when trying to use the Microsoft Installer ( MSI ) to repair or update the application.
Kaspersky also confirmed that after the update was released in November, a Windows 11 bug affected its anti-virus software on Windows 11. According to the security company, if you skip the update, Kaspersky Anti-Virus may no longer work.