Microsoft pushed an emergency, out‑of‑band update to Windows 11 on October 20 to repair a critical regression that left the Windows Recovery Environment (WinRE) effectively unusable on many 24H2 and 25H2 systems.
Background / Overview
The October 14, 2025 Patch Tuesday cumulative—delivered as...
Microsoft has pushed an out‑of‑band cumulative—KB5070773—for Windows 11 to remediate a critical Windows Recovery Environment (WinRE) regression that left USB keyboards and mice unresponsive inside the pre‑boot recovery UI on affected 24H2 and 25H2 systems.
Background / Overview
Microsoft’s...
A Windows 11 security update released in mid‑October 2025 (KB5066835, OS build 26100.6899) has introduced a serious regression: USB keyboards and mice can become completely unresponsive inside the Windows Recovery Environment (WinRE), leaving users unable to navigate recovery menus when they...
app compatibility
avx emulation
emergency patch
kb5066835
known issue rollback
oob patch
patch tuesday
prism emulator
recovery environment
recovery media
recovery tools
usbinputusbinput fix
windows 11
windows 11 kb5066835
windows eleven
windows on arm
winre
winre usbinput
Microsoft has confirmed that the October Windows 11 cumulative update (KB5066835) delivered on October 14, 2025 introduced a regression that can make the Windows Recovery Environment (WinRE) ignore USB-connected keyboards and mice, leaving built‑in recovery tools inaccessible until Microsoft...
Microsoft's October 14, 2025 cumulative update for Windows 11 (KB5066835) introduced a high‑severity regression that can leave a PC’s primary recovery path unusable: after installing the update many systems running Windows 11 25H2 (and 24H2) report that USB keyboards and mice stop working inside...
A high‑impact regression in Microsoft's October 14, 2025 cumulative update for Windows 11 (KB5066835) has rendered the Windows Recovery Environment (WinRE) effectively unusable on a broad set of devices by disabling USB keyboard and mouse input inside the Safe OS — a failure Microsoft has...
Lian Li owners reporting a disappearing L‑Connect 3 UI after Patch Tuesday’s October cumulative (KB5066835) now have a practical — if temporary — workaround: pause Windows Update, remove KB5066835, and reboot.
Background / Overview
Microsoft shipped the October 14, 2025 cumulative update for...
app compatibility
avx emulation
emergency patch
external recovery media
http sys
http2
kb5066835
known issue rollback
known issues
l connect 3
lian li
localhost issues
october 2025 update
oob patch
out of band update
patch tuesday
prism emulator
recovery
recovery environment
recovery input issue
recovery media
recovery mitigation
recovery tools
usbinputusbinput failure
usbinput fix
usbinput issue
windows 11
windows 11 kb5066835
windows 11 updates
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windows eleven
windows on arm
windows recovery
windows updates
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winre usbinput
We have 32-bit Windows 7 Enterprise deployed in our environment. We also utilize a full disk encryption solution whose kernel disables USB input during the boot process.
When an end user experiences a startup issue (for example, we repair a boot\bcd issue), their PC will boot as far as the...
bcdedit
boot issues
computer repair
default selection
enterprise
environment
full disk encryption
kernel issues
ps/2 keyboard
registry
repair
startup
system boot
technical support
troubleshooting
usbinput
user input
windows 7
windows problems
winpe