This browser is no longer supported.
Upgrade to Microsoft Edge to take advantage of the latest features, security updates, and technical support.
![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(259.20000000000005, 28.000000000000004%, 35%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3EVN%3C/text%3E%3C/svg%3E)
Keyboard freezing in Win 11 24H2 / 25H2 after installing KB5066835 on our two laptops, Acer Swift and Lenovo Yoga. Installation was Oct 16 for both laptops. The Acer Swift is on 25H2, no differance.
Keyboard works only with Restart PC option, not with 'normal' fast start.
Uninstalling KB5066835 doesn't work, since Windows reinstalls KB5066835 in the following hours.
Answer accepted by question author
![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(160, 91%, 25%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3ERB%3C/text%3E%3C/svg%3E)
Hi,
Where you able to try and disabling fast startup by going to Control Panel > Power Options > Choose what the power buttons do > Change settings that are currently unavailable, and uncheck "Turn on fast startup." Update your laptop’s BIOS/firmware and make sure the keyboard driver is current. If possible, uninstall and reinstall the keyboard driver to ensure proper initialization during boot.
Kind regards,
Thanks for the Power button workaround.
Bios was updated yesterday.
Keyboard is PS/2, on Lenovo - Driver Name: keyboard.inf
Driver Package ID: keyboard.inf_amd64_c56788078819b951
Class GUID: {4d36e96b-e325-11ce-bfc1-08002be10318}
Driver Date: 06/21/2006, Driver Version: 10.0.26100.1882
Driver Provider: Microsoft Driver Section: STANDARD_Inst
I still concentrate on :
R. VN
Disabling fast startup by going to Control Panel is a good enough workaround on My Lenovo.
Thanks a lot!
Hi,
If your keyboard freezes on Windows 11 (24H2/25H2) after installing KB5066835, the simplest solution is to install Microsoft’s emergency update KB5070773, which fixes USB input issues in recovery mode. Check for it in Settings under Windows Update, install it, and then restart your PC. To uninstall KB5066835, go to Settings, Windows Update, Update history, and then Uninstall updates, but note that Windows may reinstall it automatically. A more controlled approach is to manually download updates from the Windows Update Catalog to prevent automatic reinstallation. Also, ensure your keyboard drivers are up to date and test with another keyboard if possible, since some freezing issues can be hardware-specific.
Kind regards,
Thanks for the rapid answer!
1 I don't think that our laptop's keyboards are USB. Are they?
2 USB has been working well all the time with the external mouse.
3 Lenovo doesn't offer this update yet, but Acer does, so I will try that soon.
R. VN
I installed update KB5070773 on the Acer Swift that had already the 25H2 update also.
Does not help a bit, it is the same as before. The Keyboard works only with Restart PC option, not with 'normal' fast start.
Microsoft did not admit the keyboard freezing problem for full Windows 11 YET. They admitted only an USB problem, what is irrelevant on our laptops.
