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Hotfixes Are in Progress for Windows 11 Security Updates That Introduced Some Major Bugs

The update fixed over 170 security flaws but disabled USB input in the Windows Recovery Environment, affecting users who rely on USB devices for troubleshooting.

  • Microsoft rolled out its October Patch Tuesday update on Tuesday, fixing more than 170 security flaws but causing USB mice and keyboards to stop working in Windows Recovery Environment on Windows 11 version 25H2.
  • The Register reported last week that smartcard authentication in Windows Cryptographic Services, Windows Update Standalone Installer errors, and IIS applications might fail to load.
  • If you have an old-style PS/2 keyboard or mouse, you can navigate WinRE since the glitch affects only USB devices, and if the PC can boot, uninstalling KB5066835 via Windows Update > Update History restores input.
  • Microsoft confirmed it is working to release a resolution, with a fix slated for a future Windows update and aimed at rollout in the coming days.
  • Beyond WinRE input failures, previewing file previews from the cloud or internal network may trigger harmful-file errors, and unacknowledged problems leave affected users relying on WinRE waiting for fixes.
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The update of the Microsoft operating system contains an error that leaves the PC peripherals inoperative, in turn preventing an interaction with WinRE.

·Madrid, Spain
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iTnews broke the news in on Monday, October 20, 2025.
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