KB5050009Broken

Update fails on Citrix systems

What broke

The January 2025 Patch Tuesday update fails to install on any system running Citrix Session Recording Agent, rolling back with the wonderfully helpful “Something didn’t go as planned. No need to worry — undoing changes.” The Citrix service locks driver files that the update needs to modify, creating a deadlock that neither Microsoft nor Citrix seemed to have tested for. The workaround? Manually stop the Citrix service before every Windows Update. Enterprise IT admins everywhere added another step to their already-joyful patching procedures.

Sources

  1. BleepingComputer: KB5050009 incident report
  2. Neowin: KB5050009 incident report
  3. support.citrix.com: KB5050009 incident report

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