Windows 10: Why are my Ctrl, Windows button, and Alt keys not working?

Every other key works except for those mentioned in the question above. Has anyone else experienced this issue and how do I solve it? My keyboard is perfectly fine since I tried switching with another and the keys didn't work there either.

:)

 

ctrl alt del to logon

Hi Diane,

Conflicts with the user account settings is one of the possible reasons why the secure sign-in option is enabled on your computer even if the box in the settings is not checked. I would suggest that you enable and disable the
Require users to press Ctrl+Alt+Delete. You can follow the steps below:

• Press the Windows key + R.
• Type control userpasswords2 or netplwiz and press the Enter key.
• Click the Advanced tab.
• Under Secure sign-in, check the Require users to press Ctrl + Alt + Delete checkbox.
• Click Apply.
• Restart your computer.
• Open the same settings again and uncheck the Require users to press Ctrl + Alt + Delete checkbox and follow the
  steps 5 and 6.
  
  

Should you need further assistance, don't hesitate to get back to us.

 

Ctrl + Alt + Arrow Key hotkey not working

Hi,

Keyboard features in Windows can make navigation, tasks, and functions quicker and easier. To provide you the appropriate resolution on how to make keyboard shortcuts working on your HP Pavilion, we would like to know more information. Kindly answer the
questions below:

• Which version and OS build of Windows 10 is currently installed? To check, press
  Windows key, type winver then, press Enter key.
  
• What troubleshooting steps have you done so far?
• When you press "Ctrl + Alt + Arrow key", what is your desired result?
  

Looking forward to your response for further assistance.

 

Ctrl-alt-delete stopped working

First, I would try a different keyboard, to make sure it's not just the Alt key that's broken.