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I have a big incognito here: After some time without use my laptop (kind a month), both Ctrl keys stopped work in functions like Ctrl+A, Ctrl+C and Ctrl+X, etc.

Ok, this might be a broken connector or malfunction keyboard, but when I try my keyboard on a online tester both Ctrl keys works! To be more strange, when I do a Ctrl+ click in a web browser link to open in a new tab, works fine. Also, when I have something in my clipboard and do a Ctrl+V.

The problem seems to be very specific.

P.S. I did all this tests and reinstalled my windows too.

Jackdaw
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Max
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  • Do you have a clipboard tool, or something like that running (Autohotkey?)? You could plug in an alternate keyboard by USB to show if OS is working. You could boot from a live Linux USB (like Kubuntu; use Rufus/Etcher to make one) to show if the keyboard works. – pbhj Mar 09 '20 at 00:22

2 Answers2

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Copy & paste the following command into PowerShell to check for any keyboard remapping in the registry:

$KB = 'HKLM:\SYSTEM\CurrentControlSet\Control\Keyboard Layout'
Get-Item $KB

Does it display a property named 'ScanCode Map'?

PS C:\> $KB = 'HKLM:\SYSTEM\CurrentControlSet\Control\Keyboard Layout'                                
PS C:\> gi $kb                                                                                        

    Hive: HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control


Name                           Property
----                           --------
Keyboard Layout                Export ScanCode Map : {0, 0, 0, 0...}
                               Demo ScanCode Map   : {0, 0, 0, 0...}
                               ScanCode Map        : {0, 0, 0, 0...}


PS C:\>

If that value exists, it is quite likely remapping your keys. It does not exist by default & can be deleted. Sign out & back in for deletion to take effect.

Keith Miller
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  • Hello Keith. I dont have any property returned as response. After that I restarted my computer and problem persists. Am I forgeting something? – Max Mar 09 '20 at 14:04
  • Doesn't sound like it. The value doesn't exist by default. Have you tried Safe Mode? – Keith Miller Mar 09 '20 at 14:06
  • Tried just now. Same problem. Works on virtual keyboard, but doens't work for Ctrl + C and Ctrl + A – Max Mar 09 '20 at 14:14
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Hold Ctrl and press Insert key. This is what worked for me.

Ξένη Γήινος
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Robert
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    [Why have you submitted an identical answer to multiple questions?](https://superuser.com/questions/1611011/both-ctrl-keys-are-not-working-on-my-laptop). Questions that have the same solution should be flagged as duplicate instead of being answered. – Ramhound Jan 23 '21 at 17:23