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3h ago

Microsoft Confirms Windows 11 Update KB5066835 Breaks USB Input in Recovery Mode

Microsoft promises a near-term out-of-band fix, with normal USB input inside Windows unaffected.

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Windows Recovery Environment concept
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man in a suit gets angry and smashes the keyboard on the monitor

Overview

  • The bug disables USB keyboards and mice only in the Windows Recovery Environment, preventing navigation of repair options.
  • Microsoft lists Windows 11 versions 24H2 and 25H2 and Windows Server 2025 as affected.
  • Engineers are investigating and say a resolution will roll out in the coming days.
  • Temporary options include using a PS/2 keyboard or mouse where available, uninstalling KB5066835 if Windows still boots, or advanced steps to restore an older WinRE image.
  • The fault follows other issues tied to KB5066835, including broken localhost connections and additional problems reported with IIS and authentication.