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I have a weird problem that I have never encountered before. This problem is intermittent with no discernible trigger.

Hitting the 'c' on my keyboard does not produce the 'c' character on my screen (in all applications, for example 'notepad'). Hitting Shift-'c' produces a Capital 'C' every single time. Opening up the on-screen keyboard and clicking on the 'c' there also does not produce a 'c' character.

At one point I thought that I had fixed it by switching to an alternative keyboard layout scheme (English US -> English SA) where it had this problem on the US layout but not the SA layout. Now it has the same wrong behavior on both layouts.

Any ideas what might be causing it?

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Have you installed any new fonts recently? – Tog Mar 12 '12 at 7:19
    
No new fonts installed, but this happens in all applications, regardless of which font is being used. – Pieter Breed Mar 12 '12 at 9:16
    
Have you performed a malware scan? – Michael K Mar 12 '12 at 9:20
    
It is a corporate machine that gets scanned often and has limited access to the internet/wilderness. – Pieter Breed Mar 12 '12 at 10:57
    
@PieterBreed - Just because its a coporate machined does not mean it cannot be infected. That actually makes it much more likely it is. Furthermore "limited" internet access still means its connected to the internet. – Ramhound Mar 12 '12 at 11:46

I believe that this is a problem with Chrome, but, I have no proof or confirmation.

I have also had this problem just last week - I was typing in Chrome and a page was working find but then all of a sudden, mid-sentence c key stopped working. It may have been something else, but, it has only happened once to me and I was unable to work it out.

...it stayed not working even when Chrome was shut, and, as I was busy, I didn't have time to fix it.

In the end, I just restarted my computer and it was all fine.

So, sorry, no idea what is causing it, but, at least there is a fix!

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I will try and see if a reboot fixes it, thanks! – Pieter Breed Mar 12 '12 at 10:57

This seems to be some Chrome-specific problem indeed, but might be linked to Dell laptops, too.

Have a look at this Google support thread.

Posts there suggest to try pressing the Windows key or the Ctrl five times.

EDIT: There's an issue tracked for Chromium, too.

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Just happened to me on my computer. Windows and using Internet Explorer. I came upon this site searching for an answer. None of the answers seemed to apply to me, so I went back to my keyboard...

I hit "ESC" key and the letter "c" works again.

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protected by JakeGould Dec 14 '15 at 6:30

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