Windows 10: New Microsoft Keyboard Stopped Working

I have been away for about a week and my Microsoft keyboard less than a year old would not type when I tried to log in. Had to get another keyboard.In device manager I see "device descriptor request failed" and there was also a pop up that showed up and disappeared quickly that also told me there was an issue with the USB.I've tried multiple USB ports, rebooting, updating driver, deleting keyboard from device manager.While googling the question I saw someone get recommended to roll back windows update. Makes sense that it could be an update because I was away for a few days.But on the other

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Keyboard stops working after switching users...

Hi,

I have a very annoying issue that hast started to happen a few days ago. Basically when I switch users keyboard stops working.

Steps:

• Start PC
• Log in as user A - Keyboard works fine
• Switch User B - login screen is displayed and keypboard works to enter password
• User B descktop is displayed
  • Keyboard does not work
  • Mouse works
  • Strange behaviour - the system seems to act like the Enter key is stuck down (which it isn't). If I open word to a new document (using mouse) it just inserts new lines into the document... like I am holding the enter key down

I've tried a different keyboard and still the same issue.

Any ideas?

 

random keyboard keys stop working?

i went out today and everything was fine, i come home and three random keys stopped working, maybe more i havent noticed yet. the three key on the left side of the keyboard not working, the left shift stopped working, and the enter key stopped working, but the one on the numpad works fine. no one was home to use it, nothing spilled on it, i tried it on another computer and same deal. im gonna go buy a new one tomorrow but it makes me sad cause i loved this keyboard lol, microsoft ergonomic 4000. ill probably buy the same exact one if its in stock tomorrow, this one lasted or 4 years about. im just confused why three random keys spread out stopped working at the same time...seems very weird

 

Microsoft 5050 Wireless Keyboard & Mouse Not Detected

Hi,
I have a new Microsoft Mouse & Keyboard 2000 now.
Tried what you suggested with an old keyboard, connected the new one and it's a bit better.
I stll get an error saying the 'MKCHelper.exe' file is missing.
I still can't uninstall/reinstall Microsoft Mouse & Keyboard Centre, as it says it is on the PC, but is not listed in the list of software to uninstall.
When I slow the wheel scroll speed down, it works fine, but when I restart the PC I have to do it again, as it speeds up so much I can't control it.