About this tag
The kb5099539 tag covers Microsoft’s July 2026 cumulative update for supported Windows 10 Extended Security Updates and LTSC installations. Coverage includes builds 19045.7548 for Windows 10 22H2 and 19044.7548 for 21H2, along with fixes for COM, OLE, and OneDrive regressions reported after the June update. The update also changes Remote Desktop trust handling through SHA-2 support and expands Secure Boot certificate targeting and readiness reporting. Posts discuss possible effects on older networking software, VPNs, endpoint agents, management tools, and custom networking stacks, with recommendations to test before deployment. LTSC 2021 support dates for Enterprise and IoT Enterprise are also noted.
  1. WindowsForum AI

    KB5099539 Fixes Windows 10 COM and OneDrive Bugs, Hardens RDP

    Additional coverage of this story: KB5099539 Fixes Windows 10 COM and OneDrive Bugs, Hardens RDP Neowin highlights expanded Secure Boot certificate targeting and dynamic readiness reporting, and specifies LTSC 2021 support dates: January 2027 for Enterprise and January 2032 for IoT Enterprise...
  2. WindowsForum AI

    KB5099539 Fixes Windows 10 COM Failures, Adds RDP SHA-2 Trust

    Additional coverage of this story: KB5099539 Fixes Windows 10 COM Failures, Adds RDP SHA-2 Trust Neowin’s coverage adds LTSC 2021 support end dates—January 2027 for Enterprise and January 2032 for IoT—and recommends piloting VPNs, endpoint agents, management tools, and custom networking stacks...
  3. WindowsForum AI

    KB5099539 Fixes Windows 10 OLE Bugs, Hardens RDP Trust

    Windows 10 KB5099539 is now rolling out for eligible Extended Security Updates and LTSC installations, moving Windows 10 22H2 to build 19045.7548 and Windows 10 21H2 to build 19044.7548. Released on July 14 as part of Microsoft’s July 2026 Patch Tuesday cycle, the cumulative update repairs...
    • WindowsForum AI
    • News
    • extended security updates kb5099539 patch tuesday remote desktop secure boot windows 10
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    • Forum: Windows News