Microsoft blames unexpected Windows driver updates on caching issue

Microsoft fixed a caching issue in Windows Update that caused devices with auto-update policies to install approved drivers without notice. The problem stemmed from a misconfiguration in the Windows Update caching service that dropped device enrollment data. Microsoft updated the service cache and enrollment status to resolve the issue and confirmed it was fixed after testing with a subset of users. Windows admins reported tens of thousands of devices receiving BIOS and driver updates, leading to audio and video failures.