I want to be able to temporary disable Ctrl / Alt / F1-F12 keys on Windows 7 computer.
So that only letters and numbers keys could be pressed.
Is there a tool that allows to do that quickly and then easily revert it back?
First I thought this question is a simple software recommendation question. How wrong I was.
Google only knows KidKeyLock which blocks some keys.
There seems to be a lack of tools to block custom keyboard keys and key combinations.
You could use an AutoHotKey script to setup something like this:
Once running you can click the icon in the system tray and click 'Suspend Hotkeys' to turn it off.
PS: editing the script to test it was quite difficult once I turned off the shift and control keys... :)
Windows has a built-in scancode mapper facility if you do not want to use 3rd-party tools.
Run the following command as Administrator then reboot the PC to disable F1-F12 keys:
To restore the default mapping (also run as Administrator then reboot):