KB5087541: [Remote Desktop] This update addresses an issue that affects the Remote Desktop Connection

May 12, 2026—KB5087541 (OS Build 25398.2330)

Improvements
This security update contains fixes and quality improvements from KB5082060 ​​​​​​​(released April 14, 2026) and KB5091571(released April 19, 2026). The following summary outlines key issues addressed by this update. Also, included are available new features. The bold text within the brackets indicates the item or area of the change.

• [Daylight saving time (DST)] This update supports the 2023 DST change for the Arab Republic of Egypt.
• ​​[Sign-In] After you install the Windows update released on or after March 10, 2026, some users might experience an issue signing in to apps with a Microsoft account. Even when the device has a working Internet connection, a “no Internet” error appears during sign in and prevents access to Microsoft services and apps such as Microsoft Teams.
• [Remote Desktop] This update addresses an issue that affects the Remote Desktop Connection security warning dialog. The dialog could render incorrectly in multi-monitor scenario when the monitors had different scaling set. For more information, see Understanding security warnings when opening Remote Desktop (RDP) files.

​​​​​​If you've already installed previous updates, your device will download and install only the new updates included in this package.