Windows 11 21H2/22H2: December update ready for download

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patch day

Windows 11 will receive the next monthly update: New updates will be distributed for both 21H2 and 22H2 as part of the official patch day. That brings KB5021234 and KB5021255.


Windows 11 instructions
Windows 11 will be available on October 5th. You should note this in advance.

In addition to the Windows 10 update, the current Windows 11 operating system from Microsoft also received an update as part of the patch day. Both the 21H2 and 22H2 versions of the OS will be populated with standalone updates: the KB5021234 patch will update Windows 11 21H2 to build number 22000.1335, while the KB5021255 update will update 22H2 to build version 22621.963.

With the two Patches KB5021234 and KB5021255 As usual, current security gaps will be fixed in Windows 11 on patch day, but Microsoft is silent on the details. In addition, the update contains individual bug fixes, which are particularly related to the network settings.

Among other things, a problem with remote networks was tackled in patch day December. With this, users could not connect to these remote networks via DirectAccess, which should be a thing of the past with the current update. In addition, the impairment of the decryption of the DPAPI interface, which is responsible for private certificates, was regulated. If this failed, some VPNs could not be used properly – the update KB5021234 or KB5021255 should remedy this.

The full list of improvements and bug fixes can be found in the official Microsoft changelog KB5021234 and KB5021255. The download itself usually starts automatically via the Windows update function and installs the patches at a suitable time. If the update encounters problems, this can also be done manually via the Microsoft Update Catalog to install.

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