Why isn't my keyboard working anymore?

The story just happened to me, I have a Logitech keyboard that was working perfectly and then suddenly nothing.

Apparently this happens during an update that Microsoft Windows performs.
In this case, you need to go to the start menu, control panel, ease of access, keyboard and uncheck everything that is checked, then you restart and you will have your keyboard back.

Use the on-screen keyboard: start, all programs, accessories, accessibility, on-screen keyboard

It will help you while waiting for the update ;)

Hello

Personally, what worked for me was reinstalling my keyboard drivers.
It's easy!
Start menu => Device Manager => Keyboards => double click on the keyboard that appears => driver => uninstall. It will ask you to restart, and Windows will automatically take care of reinstalling it. And there you go, it works!
P.S.: If it asks you to uninstall the driver permanently, check: no.

Good evening,
You remove then put back the battery, I had the same problem and it worked
Bye ;)

Before performing this manipulation, make sure that the error code in the device manager is error code number 19; otherwise, it won't work:

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Here is a solution for those who, despite all the solutions on this topic, still cannot get their keyboard to work again (trust me, even if it requires modifying the registry; it worked for me):

- launch regedit (run cmd, type regedit)
- in regedit: locate the path [HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Class\{4d36e96b-e325-11ce-bfc1-08002be10318}], delete the UpperFilters key present
- open notepad and paste in:
Windows Registry Editor Version 5.00

[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Class\{4d36e96b-e325-11ce-bfc1-08002be10318}]

"UpperFilters"=hex(7):6b,00,62,00,64,00,63,00,6c,00,61,00,73,00,73,00,00,00,00,\
00
- save this file on the desktop, name it .reg: "toto.reg" for example
- close any open programs, double-click on your reg file, confirm, allow the modification of the registry
- (if your keyboard still does not work, restart the computer)

And there you go, your keyboard should now work again!

Apern

In my case, it was no longer possible to have a single character on internet browsers (Mozilla and Internet Explorer). However, the characters worked in Word documents. I don't know if it is related, but the problem occurred right after I tried to enter my password on the official website of my health insurance!

Here’s how I fixed the problem on my Asus laptop (Windows 8.1): Windows key (bottom left) / Shut down / The computer asked me to perform updates: OK / When it finished its updates (about thirty minutes, since I don’t have ADSL), everything returned to normal.

I must say that since I got Windows 8, I have been constantly having problems that I had never encountered before...