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Download the October 2021 Patch Tuesday updates

Microsoft released a new update for Windows 10, but it is not the October 2021 Patch Tuesday update.

The microsoft patch tuesday dates 2021 is a command-line tool that allows users to download the October 2021 Patch Tuesday updates.

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  • Patch Tuesday updates, as you may know, improve and add new features to the Windows operating system.
  • The number of updates, repairs, and enhancements is more this month than it was last month.
  • Each cumulative update in this article includes more information as well as a direct download link.
  • Windows 11 is nearly here, and Microsoft has stated that support for Windows 10 will be phased away in 2025.


October has here, and many people are eager to know what the next major feature update will include.

Of course, today is also the release day for the monthly Patch Tuesday upgrades, which, as usual, include a slew of new features, enhancements, and solutions for the most frequent Microsoft problems discovered in the previous month.

Because each cumulative update for Windows 10 is unique, it’s impossible to speak about a single changelog, which is why this page exists.

We’ll not only provide you with a comprehensive changelog of all the changes made to each major version of Windows 10, but we’ll also provide direct download links from the Windows Update catalog.

[DOWNLOAD DIRECT LINKS] Tuesday, August 20, 2021

Versions 21H1, 20H2, and 2004 of Windows 10

Windows 10 v21H1 is the most recent major version of Windows 10, with the most experimental features.

Thankfully, most of the problems that were present when Windows 10 was originally released have been fixed, and current version of Windows 10 is much more reliable.

Name of the cumulative update


Fixes and improvements

  • Fixes a problem that stops certain programs from opening or causing them to stop responding, such as Microsoft Office and Adobe Reader. This happens on devices with Microsoft Exploit Protection for Export Address Filtering enabled (EAF).

Windows-10-Activation-error-0xc0020036 NOTE

Updates for Microsoft HoloLens (OS Build 19041.1168) published on October 12, 2021 are also included in this release. Microsoft will issue a direct upgrade to the Windows Update Client to enhance Windows Update dependability for Microsoft HoloLens that have not yet been updated to the latest OS Build.

Issues that have been identified

Version 2004 of Windows 10.

  • This update may remove Microsoft Edge Legacy from devices with Windows installs generated from custom offline media or custom ISO image, but it will not immediately replace it with the new Microsoft Edge.
  • When custom offline media or ISO images are produced by slipstreaming this upgrade into the image without first installing the standalone servicing stack update (SSU) issued March 29, 2021 or later, this problem occurs.

Windows-10-Activation-error-0xc0020036 NOTE

Devices that get updates directly from Windows Update are unaffected. This covers Windows Update for Business-enabled devices. Any device that connects to Windows Update should automatically get the most recent versions of the SSU and cumulative update (LCU). 

To prevent this problem, make sure you slipstream the SSU from March 29, 2021 or later into the custom offline media or ISO image before the LCU.

You’ll need to extract the SSU from the combined SSU and LCU packages currently used for Windows 10, version 20H2 and Windows 10, version 2004 to do this. To extract the using SSU, follow the procedures below.

Version 1909 of Windows 10

Windows 10, version 1909, achieved end of service on May 11, 2021, for devices running the Home, Pro, Pro for Workstation, Nano Container, and Server SAC editions, according to the Redmond-based software giant.

Devices using this version of the OS will no longer get monthly security and quality upgrades, which provide protection against the most recent security threats.

So, if you still want to get security and quality updates, Microsoft advises that you upgrade to Windows 10 version 1803.

Name of the cumulative update


Fixes and enhancements

  • Fixes a problem that stops certain programs from opening or causing them to stop responding, such as Microsoft Office and Adobe Reader. This happens on devices with Microsoft Exploit Protection for Export Address Filtering enabled (EAF).

Version 1809 of Windows 10

This version of the OS is no longer supported by the tech giant, and it will no longer get upgrades. Users who still have this outdated version installed on their devices are strongly urged to upgrade to a more current version.

You are not obligated to update to Windows 11 straight immediately if you still wish to utilize Windows 10. After all, Microsoft has said that Windows 10 would be supported until 2025.

Name of the cumulative update


Fixes and improvements

  • Fixes a problem that prevents an internet print server from correctly packing and delivering updated printer settings to the client.
  • Fixes a problem that stops certain programs from opening or causing them to stop responding, such as Microsoft Office and Adobe Reader. This happens on devices with Microsoft Exploit Protection for Export Address Filtering enabled (EAF).

Issues that have been identified

  • Devices with certain Asian language packs installed may get the error 0x800f0982 – PSFX E MATCHING COMPONENT NOT FOUND after installing KB4493509.
  • The Cluster Service may fail to start after installing KB5001342 or later because a Cluster Network Driver is missing.

Version 1607 of Windows 10

This is an older OS version, originally published by Microsoft in August of 2016. The Redmond-based software firm seems to believe there is still space for development in this area.

  • Adobe Flash will be removed from your device as a result of the updates. 
  • Verification of usernames and passwords has been improved.
  • Updates to enhance the security of fundamental Windows activities.

Name of the cumulative update


Fixes and improvements

  • Users may be unable to sign in to a domain controller using Directory Services Restore Mode (DSRM) via a Remote Desktop or Hyper-V enhanced session due to a bug.
  • When the Lightweight Directory Access Protocol (LDAP) bind cache is full and the LDAP client library gets a referral, a problem arises.
  • A race situation arises when the system deletes binding objects after connections terminate, resulting in a redirector stop error.
  • When you set Group Policy preferences for Immediate Task activities, an issue prohibits the deletion of Immediate Tasks when their deletion timer starts.
  • The redirection of Enterprise Mode Site Lists from Internet Explorer 11 to Microsoft Edge is fixed. The redirection opens a webpage in several tabs in Microsoft Edge in specific situations.
  • Fixes a problem with jscript9.dll’s just-in-time (JIT) behavior. 
  • Fixes a problem that prevents an internet print server from packaging and sending a driver to a client.
  • The UxSF pool tag has a problem with a non-paged pool (NPP) leak. When lsass.exe stops processing asynchronous Security Support Provider Interface (SSPI) calls, a leak occurs.
  • The following registry value is assigned to a Group Policy setting: HKLMSoftwarePoliciesMicrosoftWindows NTPrintersPointAndPrintValue name: RestrictDriverInstallationToAdministratorsValue data: 1 Registry location: HKLMSoftwarePoliciesMicrosoftWindows NTPrintersPointAndPrintValue data: 1 See KB5005010 for additional details.
  • In the following Group Policy settings, the option to define period or dot (.) delimited IP addresses interchangeably with fully qualified host names is added:

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The july month patches 2021 is a monthly update from Microsoft that includes updates to Windows, Office, and other programs.

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