Microsoft has done it again. After releasing major Windows 10 updates every year, they have now started releasing them every month, in the form of cumulative updates. Microsoft said this was a direct result of their recent announcement, that they have perfected the technology that causes Windows 10 to automatically upgrade itself.

Windows 10 has received three cumulative updates since the operating system’s launch. Cumulative updates are a way for Microsoft to share new fixes and features with all users simultaneously. They come in the form of a large patch and are usually installed by default when the computer is restarted. The last cumulative update, Patch Tuesday, was released on May 11, 2021.

It’s Patch Tuesday, so the Redmond-based company is releasing updates for all supported versions of Windows 10. In addition to the stable releases, beta and preview insiders will have access to a brand new 21H1 19043.985 release (KB5003173). Also, today’s set of patches is notable in that it is only being released for Windows 10 versions 2004, 20H2 and 1909, with the latter being the last Tuesday of the patches. This is because Windows 10 version 1909 has reached the end of support.

Let’s take a look at the changes brought about by the patches.

What’s new in Windows 10, 11 cumulative updates. May 2021

21H1 build 19043.985 (KB5003173)

If you are an Insider in the Beta or Release Preview channel, you will receive build 19043.985 with the following changes.

Security updates for Windows App Platform and Frameworks, Windows Core, Windows Media, Microsoft Scripting Engine, and Windows Silicon Platform.

KB5003173 for Windows 10 version 2004 and 20H2

Users of the stable versions of Windows 10, version 2004 and version 20H2, will receive the update KB5003173, which increases the build number to 19041.985 and 19042.985 respectively. The general change protocol is as follows.

  • Security updates for Windows App Platform and Frameworks, Windows Core, Windows Media, Microsoft Scripting Engine, and Windows Silicon Platform.
  • This update brings qualitative improvements to the service stack, the part that installs Windows updates. Service Stack Updates (SSU) ensures that there is a robust and reliable service stack for devices to receive and install Microsoft updates.

Microsoft also points out the following enhancements included in this release.

  • Updates to improve the security of basic Windows functions.
  • Improved security of Windows OLE (composite documents).
  • Security update for Bluetooth drivers.

Finally, Windows 10 version 1909 receives the latest update, KB5003169, build 18363.1556. Below are the new features from the latest patch for this operating system.

KB5003169 for Windows 10 version 1909

Emissions

  • Updates to improve the security of basic Windows functions.
  • Fixed an issue causing the slider control to appear white on the screen and not work.
  • Improved security of Windows OLE (composite documents).
  • Security update for Bluetooth drivers.

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  • Fixed an issue causing the slider control to appear white on the screen and not work. This issue affects 32-bit applications running on 64-bit Windows 10 (WOW64) that create scrollbars using the SCROLLBAR window superclass of USER32.DLL. This problem also occurs with the HScrollBar and VScrollBar controls, and with classes created with System.Windows.Forms.ScrollBar. If you create a slider control in 64-bit applications, you can increase the memory usage to 4 GB.
  • Security updates for the Windows platform and application frameworks, Windows Core, Microsoft’s scripting engine, and the Windows Silicon platform.

All of the above updates are automatically installed on consumer devices.

It’s also worth noting that Windows 10 versions 1803 and 1809 will receive their latest updates for enterprise and education SKUs today. After that, only Windows 10 version 1809 will be supported in the long-term maintenance channel.

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Frequently Asked Questions

What is the cumulative update for Windows 10 version 1909?

Can you believe we’re already talking about Windows 10 version 20? I can’t either. But even with the Windows 10 April 2019 Update (version 1903) just having been released last month, Windows 10 version 1909 is already available. And it’s a big one, since it represents the cumulative updates that have been released for the Windows 10 May 2019 Update (version 1903) and November 2018 Update (version 1809). The May 2019 Update was released to the general public just last week, and if you’ve been playing around with it, you’ll likely have already seen some of the new features that it brings, including the Your Phone app, which lets you see your Android phone’s notifications and send texts from your PC. The biggest new features in the When Microsoft released Windows 10 version 1909, it was only a few days before users started reporting issues with the update. The company quickly published a blog post saying “Since the release of Windows 10, version 1903, we have received an increased number of reports of installation issues with the update. We are actively investigating these reports and will update this post when we have more information.”

Are Windows 10 updates cumulative?

Microsoft has had a lot of problems with updating its operating systems, especially Windows 10. The updates are cumulative, so you don’t have to worry about downloading each update one at a time. On the other hand, there have been problems with the updates, especially on the earlier versions of the operating system. So you’ve heard about the new Windows 10 update, and the updates themselves. You’ve been informed that the new update is due to come out in 2021, and that the updates are cumulative (in other words, each update includes the previous one, and anything you install now will include the full update from now on). But wait, there’s more! What does this mean, really? What does the word ‘cumulative’ mean? Does it mean that after the first update, everything just rolls along as it normally would? Is there some type of cumulative update list that you can go through and get the most recent version?

Do I need to install all cumulative updates Windows 10?

Microsoft launched a new Cumulative Update for Windows 10 on April 26, which now means all the recent updates are complete. That means that those who are still on the April 2018 Update should get a notification and that they can now install all the latest updates. However, Microsoft says that users can pause the updates, but that they should be aware that this will leave their machines open to security risks and bugs. Microsoft’s Windows 10 Creators Update will be available for download starting April 11. If you have a Windows 10 computer or tablet at home, then you’ll probably want to know if you need to install this update or not. The answer is that you probably do need to install it, but if you want to wait, you can. Microsoft’s changelog for the Windows 10 Creators Update suggests that this is a pretty big update to Windows 10, but it doesn’t have support for a lot of new features. Most of the change in this update are bug fixes and minor changes to Windows 10.

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