KB5087544 (build 19045.7291) for Windows 10 ESU drops as the May 2026 update

Windows 10 22H2 is getting build 19045.7291 (KB5087544) as the sixth update through the Extended Security Updates (ESU) program.
This update ships new fixes and improvements, continues the Secure Boot certification update for more devices, and more.
There are no new major features in this release because operating system support ended on November 14, 2025.

Windows 10 builds 19045.7291 and 19044.7291 (KB5087544) are now rolling out as part of the May 2026 Security Update through the Extended Security Updates (ESU) program for versions 22H2 and 21H2.

This update includes fixes for Remote Desktop issues, updates the Windows Security update to dynamically display the current state of the Secure Boot certificates, and rolls out changes to the Daylight Saving Time system for the Arab Republic of Egypt.

In this update, the company continues expanding Secure Boot certificate updates and adds new certificate alerts on the “Secure Boot” settings through the Windows Security app.

These are the fixes and improvements rolling out this May for Windows 10:

Remote Desktop security warnings: Fixed an issue that caused the Remote Desktop Connection security warning dialog to display incorrectly on multi-monitor setups with different display scaling settings after installing the April 2026 security update.

Microsoft is also improving how the operating system decides which devices are ready for new Secure Boot certificates. Quality updates now include more accurate targeting data, helping ensure that only devices with a strong track record of successful updates receive the certificates automatically.

Older versions of Windows 10

Furthermore, Microsoft is releasing updates available for older operating system versions, including 1809 and 1607. For example, the company is rolling out update KB5087538 for version 1809, which bumps the build number to 17763.8755 and includes fixes for Remote Desktop and sign-in experience. This update also rolls out improvements for Secure Boot and Daylight Saving Time.

Finally, Windows 10 1607 receives update KB5087537, which bumps the build to 14393.9140 and addresses the same issues and the same updates as version 1809.

Windows 10 May 2026 Patch Tuesday – Manual installation process

To download and install this Windows 10 build, open the “Windows Update” settings page and click the “Check for Updates” button.

Windows 10 May 2026 Patch Tuesday – Update history

Final Release – Patch Tuesday (Stable Channel):
- Windows 10 22H2 build 19045.7291 release date: May 12, 2026. Official notes.
- Windows 10 21H2 build 19044.7291 release date: May 12, 2026. (Same).

Windows 10 end of support

Support for Windows 10 ended on November 14, 2025, meaning the company is no longer providing security updates, bug fixes, features, or technical support. To continue receiving critical security updates (only), you must enroll your computer in the Extended Security Updates (ESU) program.

Also, remember that this lack of updates will leave your system vulnerable to security threats and may decrease its performance.

Furthermore, since the software giant no longer provides updates, you should upgrade to Windows 11 or another operating system, such as Linux Mint, or plan to purchase a new device.

According to the company, all versions of Windows 10 have already reached the end of support, including:

Version 1507 (RTM)
Windows 10 2015 LTSB
Version 1511
Version 1607
Version 1703
Version 1709
Version 1803
Version 1809
Version 1903
Version 1909
Version 2004
Version 20H2
Version 21H1
Version 22H2

If you want to continue using Windows 10, Microsoft now offers Extended Security Updates (ESU). This service was originally reserved for organizations needing to run older operating systems beyond the official support period, but it is now also offered to regular consumers.