Microsoft, Keep Your Hands Off My Keyboard

I have never thought that it might be something windows does automatically. I have had this problem even back in XP since some programs that I use like photoshop use keyboard shortcuts with space involved so sometimes I accidentally press win + space and change my keyboard layout, it's not that big of a deal since I switch often between layouts since I use US layout when programming. But now that I think about it, my machines switch layouts randomly during the day.

This is an SDL bug (wontfix IIRC) I found that 6yrs ago, after running some emulators (build with SDL library),

What I did was to disable the US keyboard from the registry:

HKEY_LOCAL_MACHINE SYSTEM ControlSet001 Control Keyboard Layouts 00000409

Then remove Layout File : KBDUS.DLL remove Layout display: @%SystemRoot%system32input.dll,-5000

I don't know why it happens, but it seems to be "all the time" sometimes. Like if I lock the computer. I've grown a habit of peeking near the clock for the language and resigned myself to hit Alt+Shift whenever it's the wrong one.