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Update Summary

KB5077744 is an out-of-band cumulative update for Windows 11 25H2 and 24H2 (OS Builds 26200.7627 and 26100.7627). It fixes Remote Desktop sign-in failures after KB5074109 and includes prior security and non-security updates. Reference IDs: KB5071142, KB5074105, KB5078127.

Update Details

Security

  • Includes security fixes and improvements from the January 13, 2026 security update (KB5074109).
  • Addresses authentication failures during Remote Desktop connections after installing KB5074109.

Bug Fixes

  • Fixed Remote Desktop sign-in failures affecting some users after the January 2026 security update.
  • Includes cumulative quality improvements from previous security and non-security releases.

Known Issues

  • Password icon might be missing or invisible in lock screen sign-in options on affected systems.
  • Apps might become unresponsive or error when opening or saving files to cloud-based storage such as OneDrive or Dropbox.

Hints

  • This update is cumulative; devices with earlier updates installed will download only the new content in this package.
  • The servicing stack update included is KB5071142 for OS build 26100.7295.
  • The cloud-storage app issue is addressed in KB5078127.
  • The missing password icon issue is addressed in KB5074105.
Product Information

Vendor: Microsoft

Product: Windows 11

Version: OS Builds 26200.7627 and 26100.7627

Release date: Jan 17, 2026