Windows 10: No key in my keyboard is working and if I press any key, 3 is repeating constantly.

No key in my keyboard is working and if I press any key, 3 is repeating constantly.If I am trying to reboot my system in safe mode then also it is not working because I am not able to write anything.It seems like the virus has taken over my laptop completely. Also I have tried many types of anti-virus like Avast, MBSetup-59E4656E-37335.37335, vipre-advanced-security and many more but to my surprise, no anti virus could remove the actual problem, although these viruses removed my viruses.Please help.

:)

 

Keyboard Volume Keys not working while in-game

I happen to have used the Tt Challenger Pro keyboard in the past, and the volume keys worked flawlessly in every game, so it's indeed a weird problem. I would suggest the same thing sneekypeet suggested, using the keyboard software and assign this function to a hotkey, but you said that didn't work either, so yeah...

 

Keyboard shortcut Alt key not working

Hi,



Before we proceed, I need more information to help you better.

• 
  Since when are you facing this issue?
  
• 
  Did you make any software or hardware changes on your computer prior to this issue?
  
  
  

I suggest you to follow the steps below and check if it helps.

Step 1: You may check if the ALT key is functioning correctly in on-screen keyboard. It will help us to verify if there is any issue with the keyboard.

Follow the steps below to open On-screen Keyboard.

• 
  Windows + Q, type OSK (on-screen keyboard)
  
• 
  And check if it works
  

Step 2: Run Hardware and device Troubleshooter.

Windows 10 has a built-in troubleshooter to check and fix issues with hardware and devices. I would suggest you to run this troubleshooter to check if the issue is with your devices. Refer these steps:

• 
  Press Windows key +X, select Control panel.
  
• 
  Change the view by option on the top right to Large icons.
  
• 
  Click on troubleshooting and click on the view all option on the left panel.
  
• 
  Run the Hardware and devices troubleshooter.
  

Keep us posted on this issue so that we can assist you better.

 

Start Key on Keyboard not Working

No problems in the troubleshooter nor Input tab for dxdiag.

I don’t believe it is anything physically wrong with the keyboard since every other key works fine. I tried removing the key cap, there was no dirt, so I tried pressing the key with no keycap on and it still didn’t work.