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

Windows 10 April 2021 Update

Windows 10 April 2021 update is now rolling out and a new patch
is available for version 20H2, v2004 and v1909. April Patch
Tuesday update comes with fixes for Blue Screen of Death errors
caused by printers, performance issues and File Explorer’s
broken search bar.

Windows 10 April 2021 update also comes with security fixes for
at least five zero-day security bugs and over 102
vulnerabilities. According to the release notes, Microsoft has
marked 19 security issues as “critical”, while 89
vulnerabilities are marked “important”. This patch also fixes
Microsoft Exchange issues reported by the NSA.

In addition to these security fixes, Windows 10’s April 2021
update is also the first Patch Tuesday release to ship without
Microsoft Edge Legacy. As you may already know, the legacy or
UWP version of Edge has been discontinued and Microsoft is
bundling the Chromium version instead.

To install the April 2021 cumulative updates, use these steps:

  • Open Windows Settings page.
  • Navigate to the Update & Security page.
  • Click on “Windows Update” and hit the check updates button.
  • Select “Download and install” but make sure optional
    updates are unchecked.
  • Restart your device.

Applying the monthly cumulative updates will change the build
number and Windows Experience Pack, but the OS version will
remain the same. In case you’re on Windows 10 version 20H2,
you’ll be getting Build 19042.928.

The same patch is also heading to version 2004, but the build
number is Build 19041.928. If you’ve already updated to version
21H1, you’ll get Build 19043.928 instead.

Windows 10 April 2021 cumulative updates:

  1. KB5001340 (Build 10240.18906) for version 1507.
  2. KB5001347 (Build 14393.4350) for version 1607.
  3. KB5001339 (Build 17134.2145) for version 1803.
  4. KB5001342 (Build 17763.1879) for version 1809.
  5. KB5001337 (Build 18363.1500) for version 1909.
  6. KB5001330 (Build 19041.928 and 19042.928) for v2004 and

Windows 10 April 2021 cumulative updates overview

April 2021 Patch Tuesday update doesn’t come with any new
features, but it includes plenty of security fixes and quality

April 2021 Patch Tuesday

According to the changelog, Microsoft has addressed numerous
security issues, including a bug where Windows NTFS can be
marked as dirty to corrupt the data when users try to reboot
the computer and run chkdsk (Check Disk) command.

Build 19042.928 for Windows 10 version 20H2

As we noted at the outset, Windows 10 version 20H2 is getting
upgraded to Build 19042.928 (KB5001330)
with security fixes and improvements from the last optional

April 2021 cumulative update

For example, Microsoft says it has fixed numerous issues with

As you may know already, the Explorer.exe process powers the
taskbar, Action Center (notification area), and File Explorer.

In some cases, Explorer could start acting strangely or even
hang due to high resources usage. You can always close and
restart Windows Explorer, but restarting doesn’t always work
for everyone.

Thanks to the feedback provided by testers, Microsoft has
identified and patched the root behind the Explorer.exe issues,
and applying the April update should improve overall system

Other fixes in this cumulative update:

  • Fixed broken search filters in File Explorer.
  • Improved security for Windows Components, Kernal, Windows
    Apps, and more.
  • Removed classic Microsoft Edge.

Windows 10 version 20H2 rollout status as of April 2021

Windows 10 version 1909 is approaching the end-of-service
period and users are required to update to the most recent
version of the OS. However, Windows 10 version 20H2 is still
blocked on some computers, especially when you have certain
audio drivers installed and it’s not yet clear when the upgrade
block will be lifted.

Microsoft will also start installing the October 2020 Update
automatically if you don’t update your supported device.

Build 18363.1500 for Windows 10 version 1909

If you still have Windows 10 version 1909 installed, there’s a
new patch for your device that will bump the OS to Build
18636.1500 (KB5001337).
This release includes all fixes highlighted above for version

Microsoft Edge Legacy removed in April 2021 Patch Tuesday

Last month, Microsoft dropped support for the original and
EdgeHTML-based version of Edge. That version of Edge is now
referred to as “Edge Legacy” and it has been superseded by a
Chromium-based version, the open-source platform that also
powers Google Chrome, Brave and other browsers.

With April 2021 Patch Tuesday release, Microsoft has removed
the classic Edge and started bundling the Chromium version.

In addition to Microsoft Edge legacy,
Microsoft is also trying to sunset Internet Explorer by
redirecting users to Chromium Edge when they open popular
websites, such as YouTube and Netflix.

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