Windows 10 KB5005101 fixes critical issues in version 21H1 and older

Windows 10 KB5005101

KB5005101 is rolling out to Windows 10 21H1, v20H2 and version
2004 via Windows Update. For those who prefer to patch their
systems without connecting to Windows Update, Microsoft has
also published the direct download links for Windows 10
KB5005101 offline installers.

Windows 10 KB5005101 is an optional update and you don’t have
to install it immediately via Windows Update. Like the previous
optional updates, it does not include security fixes and
Windows Update won’t install it automatically. However, it
comes with various stability fixes and other improvements which
will be included in September Patch Tuesday.

KB5005101 will advance your system to Windows 10 Build
19043.1202 if you’re on version 21H1 (May 2021 Update). For
those still on version 20H2, they will receive the same patch
with Build 19042.1202. Likewise, version 2004 is getting
Windows 11 Build 19041.1202 with the same set of fixes.

This optional patch is part of
Windows 10’s August 2021 Patch cycle and it has addressed
issues with
Bluetooth A2DP connections. According to our tests,
Microsoft has finally addressed an issue that prevents wireless
headsets from connecting using Advanced Audio Distribution
Profile (A2DP), a feature that enables support for music
playback.

KB5005101 Windows Update

On your devices, when you check for updates today, the
following update will appear on your screen:

2021-08 Cumulative Update Preview for Windows 10
Version 21H1 for x64-based Systems (KB5005101)

Or

2021-08 Cumulative Update Preview for Windows 10
Version 20H2 for x64-based Systems (KB5005101)

To download and install Windows 10 Build 19043.1202, use these
steps:

  • Open Windows Settings page via Search or Start menu.
  • Navigate to the Updates & Security section of Settings.
  • Tap on Windows Update.
  • Select Check for updates.
  • Click on “Download and install” under the optional updates
    section.
  • Select “restart now” to complete the installation.

Download Links for Windows 10 KB5005101

Windows 10 KB5005101 Direct Download Links: 64-bit and
32-bit (x86).

Using Microsoft Update Catalog, you can download Update
Standalone Installer (.msu) files of the new updates. Pay close
attention to the updates listed in the catalog and identify the
correct edition. Make sure that your version number and
operating system bit matches the one in the update.

You can open Visit Settings > System > About on Windows
10 to view this information.

Click the Download button on the right side and this will open
a new window with a link to the .msu file. Copy and paste the
.msu link in another tab to download the update. Double-click
the update package follow the prompts to install it.

Windows 10 KB5005101 (Build 19043.1202) Full Changelog

  1. Fixes Bluetooth connectivity issues.
  2. Fixes slow or broken Windows Update page.
  3. Fixes an issue that resets syncing for OneDrive.
  4. Fixes an issue that affects the copy-and-paste command in
    Office 36.
  5. Fixes an issue that affects the stability of the device.

Microsoft has fixed an issue that could block users from
accessing DCOM activation failures and another bug that crashes
the Windows Remote Management (WinRM) service. For enterprises,
Microsoft patched an issue that crashes Windows Management
Instrumentation (WMI) provider host process.

Windows 10 Build 19043.1202 also includes several bug fixes for
consumers. For example, the tech giant has fixed an issue that
resets brightness for HDR monitors when you stream standard
dynamic range (SDR) content.

Another bug has been fixed where the external monitor shows a
black screen after leaving the hibernation monitor. This
problem has been observed on PCs where external monitors are
connected to a docking station. Windows 10’s bug that could
prevent users from minimizing app windows has been fixed in
this release.

The patch also comes with these bug fixes:

  • Microsoft has fixed a memory leag bug caused by VBScript.
  • Microsoft has fixed issues with the out-of-box experience
    (OOBE) process of Windows.
  • Microsoft has fixed an issue that crashes apps when the
    device does not haveedgegdi.dll installed.
  • Microsoft has fixed an issue that could cause your device
    to stop responding when you use touch input, such as a touchpad
    or touchscreen

As you can see, Windows 10 Build 19043.1202 has fixed numerous
bug fixes. The company has also fixed issues affecting Office
365, resized images, USB audio headsets, Authentication
Mechanism Assurance, ShellHWDetection service, Windows Defender
Exploit Protection, and more.

Ahead of Windows 11 October release, Microsoft has also enabled
support for a new Group Policy called “Adds the “Target Product
Version” policy. By configuring this policy, you can specify
the Windows release you want to remain on or migrate to. For
example, if you’re not interested in Windows 11, you can
specify Windows 10 21H1 or 21H2.

Known issues in the latest optional update

Microsoft is currently aware of the following known issues in
Build 19043.1202:

  • A bug could affect the feature of the Japanese Input Method
    Editor (IME) when you enter Kanji characters.
  • Microsoft Edge (Chromium) could be missing if you
    reinstalled the operating system using custom offline
    media or custom ISO image.
  • Some devices cannot apply these Windows Updates due to the
    error message “PSFX_E_MATCHING_BINARY_MISSING”.

If you’ve discovered undocumented critical bugs in this patch,
you can always
uninstall Windows Update using Command Prompt or Settings
app:

  • Open Windows Update and click ‘View update history.
  • Click on the ‘Uninstall updates’ option (available in the
    top-left corner of the page).
  • In Control Panel, select the update you wish to uninstall.
  • Click on “Uninstall”.

Once done, restart the device when prompted.

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