PC thinks CTRL (and possibly ALT too) is being held down


  1. horribad
    Posts : 47
    Microsoft Windows 7 64-bit
       New #1

    PC thinks CTRL (and possibly ALT too) is being held down


    This issue persists even with different keyboards and mice. Makes it impossible to type or do anything of note on the pc without on screen keyboard as when I try to type the pc thinks i want new tabs on browser, to bring up an "open file" prompt or various other functions related to modifier commands.

    • Sticky keys are completely turned off
    • I have swapped OS from Windows 10 to Windows 7 to start from scratch in case of registry conflicts
    • Have tried all the solutions I've seen on google


    No idea what to do next. Any help would be appreciated. Hitting alt at any point will shut down the pc.

    Currently typing this from my partner's laptop because on-screen keyboard sucks :s
    Last edited by horribad; 15 Oct 2016 at 17:57. Reason: clarity
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  3. Megahertz07
    Posts : 7,351
    Windows 7 HP 64
       New #2

    Did you see the Device manager to see if there is any driver issue?
    Is the keyboard set properly? Control Panel\All Control Panel Items\Keyboard
    Is it set to your properly to your language? Control Panel\All Control Panel Items\Region and Language
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  4. horribad
    Posts : 47
    Microsoft Windows 7 64-bit
    Thread Starter
       New #3

    Megahertz07 said:
    Did you see the Device manager to see if there is any driver issue?
    Is the keyboard set properly? Control Panel\All Control Panel Items\Keyboard
    Is it set to your properly to your language? Control Panel\All Control Panel Items\Region and Language
    Like I said this issue occurs even without the keyboard plugged in. I troubleshooted the keyboard before realising it wasn't a keyboard issue, though, and made sure drivers were correctly installed and my language was set up correctly, yes.
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  6. Ranger4
    Posts : 9,746
    Windows 7 Home Premium 64 bit sp1
       New #4

    This problem can be caused by a faulty mouse problem.

    Open Control Panel & select Ease of Access Centre & when that open select On Screen Keyboard & see if any of the keys are stuck down. If so see if you can un-click them, if that fails, then disconnect you mouse & see if that fixes the problem. If it does then the fault is with the mouse.

    You could try another mouse or uninstall your existing one, restart your computer & then reinstall the mouse software if it has it's own software, otherwise just use the Windows mouse drivers.
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