Windows 10 March 2021 updates: What’s new and improved

Windows 10 March 2021 update

Windows 10 March 2021 update is now available for all supported
versions of the operating system – v20H2, v2004 and v1909.
March Patch Tuesday comes with gaming optimization, Blue Screen
of Death fixes, security improvements for legacy Microsoft
Edge, and more.

Windows 10 March 2021 update comes with a long list of security
fixes for over 82 vulnerabilities, which includes the bugs
marked as ‘critical’ and ‘important’. This includes a zero-day
vulnerability reported by Google engineers where hackers abused
the Visual Studio project.

Microsoft has also confirmed that it’s expanding the rollout of
the Adobe Flash Player-killer update. If you still have Flash
Player, a new optional update will remove it from your
computer.

To install the March 2021 cumulative updates on your PC, simply
follow these steps:

  • Head to the Windows Update page in the Settings app.
  • Click on the ‘Check for updates’ button.
  • Unselect the optional driver updates (if any).
  • Select ‘Download and install’.
  • Restart your device.

The build number and fixes included in the updates depend on
the version of Windows 10 installed on your device. If you’re
on version 20H2 (which is the latest version), you’ll be
getting Build 19042.867. For those on version 2004 (May 2020
Update), you’ll get the same patch but it will have a different
version number – Build 19041.867.

Windows 10 March 2021 cumulative updates:

  1. KB5000803 (Build 14393.4283) for version 1607.
  2. KB5000812 (Build 15063.2679) for version 1703.
  3. KB5000809 (Build 17134.2087) for version 1803.
  4. KB5000822 (Build 17763.1817) for version 1809.
  5. KB5000808 (Build 18363.1440) for version 1909.
  6. KB5000802 (Build 19041.867 and 19042.867) for v2004 and
    20H2.

Windows 10 March 2021 cumulative updates overview

March 2021 Patch Tuesday update comes with security fixes and
quality improvements only. No new features are included in this
release.

According to the changelog, the update comes with unknown
security improvements for Office products, Windows user
interface and the system process responsible for basic
operations.

Build 19042.867 for Windows 10 version 20H2

Windows 10 version 20H2 is getting Build 19042.867 (KB5000802)
as part of this month’s Patch Tuesday.

March 2021 cumulative update

Based on the changelog of the patch and last optional update,
here’s a list of all important fixes and improvements in this
release:

  1. Microsoft says they have fixed game stuttering experienced
    in some desktop-based games when played in fullscreen.
  2. Microsoft has fixed video playback issues affecting Windows
    10 apps, such as Movies & TV and Edge.
  3. The update has fixed issues with refresh rates settings for
    some monitors.
  4. General performance and gaming improvements.

Windows 10 version 20H2 rollout status as of March 2021

Most of the critical and known issues are now marked as ‘fixed’
or partially fixed. However, Microsoft is still aware of issues
with Input Method Editor (IME) where some characters will not
show up in your app.

As most of the bugs are now fixed,
Microsoft confirmed that it has started forcing Windows 10
version 20H2 on devices running outdated versions, such as
version 1903 or version 1809.

Microsoft is also said to be using machine learning to expand
the rollout of the feature update.

Build 18363.1440 for Windows 10 version 1909

For those still using Windows 10 version 1909, Microsoft has
published Build 18363.1440 (KB5000808)
and it comes with identical bug fixes. Apparently, no new
updates were released for Windows 10 version 1903, which has
been discontinued.

Microsoft is ending support for old Edge on Windows 10

After releasing these updates, the tech giant reminded both
end-users and IT admins that the old Microsoft Edge has been
retired with March 2021 Patch Tuesday update and it will no
longer receive support from the company beginning on March 10.

If you still have the old Microsoft Edge installed, the next
cumulative update will remove the retired browser and install
Chromium-based Edge instead. Microsoft recommends that old Edge
users make the switch to a supported browser to continue using
its web apps and services.

The end of support for Microsoft Edge will affect users of
Windows 10 version 20H2, version 2004 and older, which is why
Microsoft is warning users about the upcoming change. For those
that didn’t see the announcement though, Microsoft has begun
showing an “end of support” alert to Edge users telling them
that they’ll need to upgrade.

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