September Patch Tuesday update is now available for Windows 10
21H2, v20H2, and v2004. Today’s patch comes with several
security bug fixes and general quality improvements for all
supported versions. Microsoft has also published direct
download links for Windows 10 KB5005565 offline installers.
KB5005565 is a mandatory security patch part of this month’s
Patch Tuesday and it addresses a security bug known as MSHTML
(CVE-2021-40444). In addition to security fixes and
improvements, you can expect fixes for Bluetooth and audio
issues in today’s update.
For those on version 21H1 (May 2021 Update), this update will
advance your PC to Windows 10 Build 19043.1237. Users on
older versions are also getting the same update, but the build
number will vary. For those on 20H2, they’ll get Windows 10
Build 19042.1237 instead.
For those on May 2020 Update (version 2004), they’ll get Build
On supported devices, Windows Update will detect the following
patch when you check for updates:
2021-08 Cumulative Update for Windows 10 Version 21H1
for x64-based Systems (KB5005565)
Download Links for Windows 10 KB5005565
Windows 10 KB5005565 Direct Download Links: 64-bit and
Microsoft Update Catalog is recommended if you’re unable to
download and install the cumulative updates using Windows
Update or WSUS. To download the offline package, head to the
Microsoft Update Catalog and locate the patch next to the
correct edition and version of the operating system.
Once found, click on the “download” button to open the download
window. Right-click and copy the .msu link, and paste it in
another browser tab to start the download.
Windows 10 KB5005565 (Build 19043.1237) Full Changelog
- Bluetooth issues are now fixed.
- Windows Update page issues fixed.
- Addresses a bug that might prevent users from minimizing
Microsoft has fixed numerous problems with today’s security
update. For example, a bug that could prevent Bluetooth
headsets from working has been fixed. Likewise, Microsoft has
also resolved an issue that could block headsets if you connect
the audio devices using USB and you’ve third-party drivers.
Microsoft is fixing an issue that degraded the quality of
resized images with residual line artifacts. Another bug has
been fixed where users cannot type words in the username box
during the Windows 10 setup screen. This problem has been
experienced on PCs with Chinese Input Method Editor (IME).
Windows 10 Build 19043.1237 has also fixed an issue that could
crash your device when you try a gesture using touch input like
the touchpad. For those with external monitors, Microsoft says
it has fixed an issue that could result in a black screen for
some users. The black screen bug was reported when users
restarted their desktop from hibernation mode.
Windows 10’s latest security patch also resolves quality issues
when streaming standard dynamic range (SDR) content on
high-dynamic-range (HDR) monitors.
Known issues in the update
Microsoft is aware of an issue that could result in Windows
Update failures. This bug was spotted after users applied the
June 21, 2021 (KB5003690) update, and they started receiving
update errors “PSFX_E_MATCHING_BINARY_MISSING”.
In addition to the cumulative update,
Microsoft is also preparing Windows 10 version 21H2 for the