US EditionIt's only Been a Few Days Since Windows 10's Demise, and the Latest Windows 11 Update Is Causing Havoc
The October 2025 update KB5066835 disables USB mouse and keyboard use in Windows 11 Recovery Environment, blocking key PC repair functions until a fix is released.
- On October 14, Microsoft's KB5066835 October update broke USB device functionality in the Windows Recovery Environment, arriving as Windows 10 reached end of life.
- When a PC fails to start, it boots into Windows Recovery Environment, but KB5066835 disables USB mice and keyboards in Windows RE, blocking navigation of recovery options.
- Windows RE provides reset and repair tools, offering reset, automated diagnosis, uninstall updates, and restore backups for issues beyond simple restarts.
- Microsoft said it is aware and is working on a fix "in the coming days," as the bug leaves roughly half a billion PC users vulnerable following Windows 10 end of life.
- Amid recurring bugs, Windows 11 has seen localhost functionality and reported SSD glitches, prompting some users to delay upgrades or try Tiny11 or Linux while hoping Microsoft's next Windows 11 build fixes issues.
14 Articles
14 Articles
At the end of Windows 10, all eyes are now back to Windows 11. This is the only supported version and what is recommended. Everything would be fine, it wasn't the...
If finding yourself in the Windows recovery interface wasn't bad enough, you might have another unpleasant surprise after a recent system update: you simply can't use your USB mouse and keyboard. Fortunately, the bug was quickly fixed.
The October security update for Windows 11, released a week ago by Microsoft, caused a bug that prevented mouse and keyboard input in Windows Recovery. Microsoft has just fixed the issue.
Computerworld
Security patch or self-inflicted DDoS? Microsoft update knocks out key enterprise functions
An October 2025 Microsoft Windows security update is wreaking havoc on enterprises, impacting multiple systems with bugs ranging from annoying to showstopper. The update in KB5066835 was intended to strengthen Windows cryptography, by moving from the older Cryptographic Services Provider (CSP) to the more secure Key Storage Provider (KSP), but users may now be experiencing issues with authentication, websites, updates, and even use of mice and k…
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