1 Windows 10 Version 2004 and Insider Version 20H22 Versions 1909 and 19033 Windows 10 18094 Unsupported Versions

Considering the recent history of Patch Tuesday’s, we are unsure whether to greet new updates with excitement or concern. That’s because these updates have a nasty habit of fixing one issue but causing others. Recently, Microsoft sent out a fix for Windows Search that has left users unable to boot their PCs. In April, that month’s release also triggered BSODs in Windows 10. In March, the cumulative update left Microsoft Defender not showing some files. Last month’s batch was reportedly causing BSOD errors for some Windows 10 users. Below there are a massive number of changes across Windows 10 versions. Microsoft has patched all Win10 versions aside from version 1511, including the 20H2 preview. Below we will look at them all, so buckle up because it is a long ride.

Windows 10 Version 2004 and Insider Version 20H2

Users running Windows 10 version 2004, the latest major build of the platform, are receiving KB4579311. This patch is also for Windows 10 20H2 users on the Insider Program. The relevant builds here are 19041.572 or 19042.572, respectively. You can manually download it here, and these are the highlights:

Updates to improve security when using Microsoft Office products. Updates for verifying usernames and passwords. Updates to improve security when Windows performs basic operations.

Here’s the full list of fixes:

Addresses an issue with a possible elevation of privilege in win32k. Addresses an issue with the Group Policy service that might recursively delete critical files in alphabetic order from %systemroot%\systm32. This issue occurs when a policy has been configured to delete cached profiles. These file deletions might cause stop error “0x5A (CRITICAL_SERVICE_FAILED)” boot failures. Addresses an issue with creating null ports using the user interface. Security updates to Windows App Platform and Frameworks, Microsoft Graphics Component, Windows Media, Windows Fundamentals, Windows Authentication, Windows Virtualization, and Windows Kernel.

Known Issues  

Versions 1909 and 1903

Microsoft is patching last years Windows 10 updates with the KB4577671 patch. This brings the versions to build number 18363.1139 or 18362.1139, respectively.

Updates to improve security when using Microsoft Office products. Updates for verifying usernames and passwords. Updates to improve security when Windows performs basic operations. Updates for storing and managing files.

Here’s the full list of fixes:

Addresses an issue with a possible elevation of privilege in win32k. Addresses an issue with the Group Policy service that might recursively delete critical files in alphabetic order from %systemroot%\systm32. This issue occurs when a policy has been configured to delete cached profiles. These file deletions might cause stop error “0x5A (CRITICAL_SERVICE_FAILED)” boot failures. Addresses an issue with creating null ports using the user interface. Security updates to Windows App Platform and Frameworks, Microsoft Graphics Component, Windows Media, Windows Shell, Windows Cloud Infrastructure, Windows Fundamentals, Windows Authentication, Windows Virtualization, Windows Kernel, and Windows Storage and Filesystems.

Known Issues  

Windows 10 1809

Next up is version 1809, which Microsoft has said will end support in November (although it may be extended like version 1803 was). Either way, this is build number 17763.1518 and here’s the changes:

Updates to improve security when using Microsoft Office products. Updates for verifying usernames and passwords. Updates to improve security when Windows performs basic operations. Updates for storing and managing files.

Here’s the full list of fixes:

Addresses an issue with a possible elevation of privilege in win32k. Addresses an issue that causes apps that use Dynamic Data Exchange (DDE) to stop responding when you attempt to close the app. Addresses an issue with the Group Policy service that might recursively delete critical files in alphabetic order from %systemroot%\systm32. This issue occurs when a policy has been configured to delete cached profiles. These file deletions might cause stop error “0x5A (CRITICAL_SERVICE_FAILED)” boot failures. Addresses an issue with creating null ports using the user interface. Security updates to Windows App Platform and Frameworks, Microsoft Graphics Component, Windows Media, Windows Shell, Windows Cloud Infrastructure, Windows Fundamentals, Windows Authentication, Windows Virtualization, Windows Kernel, and Windows Storage and Filesystems.

Known Issues   Microsoft is working on a resolution and will provide an update in an upcoming release.

Unsupported Versions

Many Windows 10 versions are officially no longer supported. However, there are some circumstances where support is ongoing. For those versions, Microsoft is sending out the following patches:  

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