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So i recently spilled some beer on my keyboard and i noticed that the "T" key stopped working. So I swapped it out with a new keyboard but now the problem persists? But about 10 minutes after i restart the computer. it works for a little bit, hence this post. But soon it will stop, and not even the "On-Screen Keyboard" will register the "T" key.

I am running Windows 7 and really have no idea what is going on. Any help appreciated!

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I am this is a software problem, despite the spilled beer (tragedy.. =/) I am only saying this because the On-Screen Keyboard won't work as well. You haven't installed any new software lately, or accidently changed keyboard layouts (despite it only being one key), or anything else lately have you? – cutrightjm Mar 26 '12 at 2:19
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I think your computer is telling you that you should be a T-totaler. – Daniel R Hicks Mar 26 '12 at 2:22
    
Can we rule out a software issue by trying a livecd? Is this a desktop or laptop? – Journeyman Geek Jul 23 '12 at 0:19

I have the same problem (in my case, the button with the ! does not work (on a swiss german keyboard)).

I tried to detect the problem with AutoHotKey (I could not see the button or who influences it neither) and KeyTweak (did also not work).

The current workaround: set up a hot key via AutoHotKey that inserts the button ! via the clipboard (the Send function of AutoHotKey also does not work). Save the following in the file exclamationMark.ahk and run the script via AutoHotKey:

; workaround to make "!" available via AltGr-5

<^>!5::

 ; Save the entire clipboard to a variable of your choice.

ClipSaved := ClipboardAll   

Clipboard:="!"
;Send ^v      ; does not work in cygwin mintty terminal
Send +{Ins}

Clipboard := ClipSaved   ; Restore the original clipboard. Note the use of Clipboard (not ClipboardAll).
ClipSaved =   ; Free the memory in case the clipboard was very large.
return
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First make sure the old keyboard is really disconnected. That is likely the problem if it still is. You might also want to try a different USB port or even an archaic PS2 keyboard if you have one readily available.

If that didn't solve it, boot a live disk of a different OS and see if the problem persists to rule out software/driver problems (which are easily solved by a reinstall).

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I would consider the likelihood that someone (presumably malicious) has installed key intercept software on your box and it's malfunctioning.

Scan the box seven ways from Sunday for malware.

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That seems really far-fetched. – Mechanical snail Jul 23 '12 at 2:39
    
@Mechanicalsnail -- But the OP says even the on-screen keyboard doesn't work. There's no way that spilling something into the keyboard could affect the on-screen keyboard. Something in the OS would have to produce a problem like that. Could be malware, could be some sort of "accessibility aid", could be some sort of macro driver. – Daniel R Hicks Aug 1 '12 at 2:45
    
I agree it looks like a software problem, but I wouldn't assume it's malware that's causing the <kbd>T</kbd> key to stop working. Scanning for malware is unlikely to help. – Mechanical snail Aug 1 '12 at 7:17
    
@Mechanicalsnail -- I said "consider the likelihood" -- didn't say it was in any way certain. – Daniel R Hicks Aug 1 '12 at 21:59
    
@Mechanicalsnail - Some time ago I had the same problem and finally it was tracked down to malware. Looks weird and unprobable. But after killing malware process in ProcessExplorer the key started working instantly. – miroxlav Apr 4 '14 at 22:22

I have seen this in the past as a result of the malware. After killing the malware process the key started working instantenously.

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