KB5012643 is now available for Windows 11 with a few noteworthy
changes and a range of additional bug fixes. The update is
rolling out via Windows Update and WSUS, but you can also
download the offline installers of Windows 11 KB5012643. The
offline installers are particularly helpful when users are
unable to install the patch via the traditional methods.
Windows 11 KB5012643 is an optional cumulative preview update
and it is designed to test the changes set to ship with May
2022 Patch Tuesday updates. Like the rest of the optional
updates, this cumulative update won’t download and install
automatically unless you check for updates and manually start
This optional cumulative update is not a huge release unlike
the March 2022 optional update, but there are several quality
improvements. For example, Microsoft has added a new feature
that would display the temperature on top of the weather icon
which was added to the taskbar with the
April 2022 Update.
Microsoft has fixed an issue where the OS incorrectly aligns
video subtitles and another bug has been fixed where the video
subtitles will be partially cut off. Microsoft says it also
made changes to prevent users from using the Windows window
controls, such as minimize, maximize, and close buttons.
Download Links for Windows 11 KB5012643
Windows 11 KB5012643 Direct Download Links: 64-bit
As mentioned at the outset, Windows cumulative optional update
is offered via Windows Update in Settings. If you still want to
download the offline installer, which is offered in .msu (MSU
package), you can head to the above link of the Microsoft
On the Microsoft Update Catalog page, click on the ‘Download’
button and open the .msu link.
For those unaware, the process of downloading the update
package is now much easier in browsers like Google Chrome.
Previously, Microsoft served updates on its Update Catalog via
insecure connection HTTP. As a result, Google blocked users
from opening the .msu directly in the current tab.
Update Catalog links are now served through HTTPS and Google no
longer blocks users from opening the .msu download links.
Windows 11 KB5012643 (Build 22000.652) improvements
- Windows 11 taskbar can now display temperature on top of
the weather icon on the taskbar.
- Microsoft says it made changes to improve servicing of the
Secure Boot component of Windows 11.
- Microsoft fixed an issue where video subtitles are
partially cut off.
- Microsoft fixed an issue that causes the OS to incorrectly
align video subtitles.
- A weight bug has been fixed where users cannot click on
minimize, maximize, and close buttons.
As per the release notes, Microsoft has fixed a race condition
where the startup process might cause a stop error i.e Blue
Screen of Death when you boot the operating system.
The company fixed an issue where AppX Deployment Service
(AppXSvc) stops working when you install the MSIX apps. The
company has also made improvements to the Autopilot client and
TPM) that support self-deployment and pre-provisioning
Another bug has been fixed where Windows reports high memory
usage due to a memory leak bug. Microsoft has also fixed an
issue that affects the Title attribute in Microsoft Edge IE
mode, a bug where mobile device management policies were not
allowed on Windows Enterprise editions.
Microsoft says it also fixed an issue where Windows could go
into BitLocker recovery after a servicing update. Another bug
has been fixed where the operating system might fail to copy
the security portion of a Group Policy.
Build 22000.652 improvements and fixes:
- Microsoft has fixed an issue where Netdom.exe or the
Active Directory Domains and Trusts snap-in procedures might
- For enterprises, Microsoft has fixed an issue where the
primary domain controller (PDC) of the root domain generates
warning and error events in the System log.
- Microsoft has also fixed an issue that would reduce the
overhead of resource contention in high input/output operations
per second (IOPS) scenarios.
Known issues in Windows 11 update
Microsoft is currently aware of only one known issue in the
update. As per the release note, if you created a recovery disk
using the ‘Backup and Restore’ feature of Windows 7, your
recovery won’t work.
This bug does not affect third-party backup or recovery apps.
Microsoft starts preparing for Sun Valley 2
Microsoft is planning to launch Windows 11 version 22H2
codenamed “Sun Valley 2” in the fall, with reports suggesting
the update could launch as early as August.
In addition to the optional update, Microsoft says it also
bundled a new change that makes the quality improvements to the
servicing stack. For those unaware, servicing stack update
includes quality improvements for a component that installs
It ensures that stack updates have a robust and reliable
servicing stack to ensure Windows Updates are installed
smoothly. Servicing stack updates are typically released a few
months before the launch of the major feature release.