Ctrl + tab stopped working

[Vereesa]

As the title suggests, a few weeks ago I noticed I could no longer tab to the next tab in FireFox using the aforementioned key combination. It would also seem it's not specific to FireFox since it's non-functional in both Chrome and mIRC to switch tabs and WoW doesn't recognize it as a keyboard input.

Of additional note: both ctrl and tab work fine on their own, along with ctrl + shift + tab to go to the previous tab. So short of reinstalling Windows or burning my computer down and buying a new one, what options do I have of fixing this?

[Tehterokkar]

Check for ANY programs that might have keybinds for profiles(eg. overclocking programs such as MSI Afterburner) and delete them, had similar issue myself sometime ago with Ctrl+Alt+2(@) being blocked from use.

Also you can check if the bind is recognized through the On-Screen keyboard(Windows Key, type "On-Screen Keyboard"), just click on Ctrl and then on Tab and it should switch tabs(make sure Chrome/Firefox is the active window, as OSK doesn't follow your normal active window rules).

[Vereesa]

Check for ANY programs that might have keybinds for profiles(eg. overclocking programs such as MSI Afterburner) and delete them, had similar issue myself sometime ago with Ctrl+Alt+2(@) being blocked from use.

I don't recall having changed any settings anywhere, I just remember one day noticing the combination doesn't work, and the only software to do with keybindings is the Logitech Gaming Software for my G600 and G930, which I already tried uninstalling and reinstalling.

Also you can check if the bind is recognized through the On-Screen keyboard(Windows Key, type "On-Screen Keyboard"), just click on Ctrl and then on Tab and it should switch tabs(make sure Chrome/Firefox is the active window, as OSK doesn't follow your normal active window rules).

Tried this, the results were identical - ctrl + tab behaved exactly like they do on the physical keyboard, as in the input did nothing.