KB5135580: Overview with user sentiment and feedback
Last Updated November 7, 2026
Probability of successful installation and continued operation of the machine
Overview
KB5135580 is an out-of-band, non-security cumulative update for Windows Server 2012, released November 6, 2026. It is the final update delivered through the Extended Security Updates (ESU) program, which ended October 13, 2026. It rolls up the October 2026 Monthly Rollup (KB5126835) and adds quality fixes.
General Purpose
- Fixes MPIO-managed iSCSI disks that could go offline or show error C0000010 in Device Manager.
- Resolves an issue where some USB Audio Class 1.0 devices failed to start or produce audio.
- Includes an updated trusted root certificate payload for devices that do not receive automatic CTL updates.
- Requires the latest servicing stack update (KB5127357) first; WSUS admins must approve both updates.
- When updating offline images, include boot.stl to avoid error 0xc0430001.
- Azure Arc-enabled servers may fail to install the ESU unless Connected Machine agent endpoint requirements are met.
General Sentiment
No Reddit or Windowslatest discussion was included in the provided data, so community reception could not be directly assessed. The source material reports no known issues, and the fixes it lists are narrow, which suggests low risk. The main caveats are the SSU prerequisite and the Arc-enabled ESU installation requirements.
Known Issues
Disclaimer: We take measures to ensure that AI-generated content is of the highest possible quality, but we cannot guarantee its accuracy and recommend that users do their own independent research. Generated on 2026-11-07 01:01 PM
