Alt+Shift activates menu - an upleasant annoyance of AU version

The default key combination for switching keyboard layouts is Alt+Shift. Unfortunately, after Anniversary Update Windows often activates the current window's menu bar when one presses Alt+Shift. More precisely, it does switch the keyboard layout, but at the same time it treats Alt+Shift combination as a single Alt hit - it activates the menu bar. This happens in about 9 cases out of 10. This is extremely annoying, since in the middle of typing some text after switching keyboard layout I suddenly discover that the text I type is now interpreted as menu shortcuts.

If I make sure that I press Alt and Shift perfectly simultaneously, it usually works as before (no menu is activated), but in real life it is not possible to hit these keys with perfect simultaneity all the time.

Older versions of Windows (including pre-AU Windows 10) were handling this situation more gracefully. They understood that Alt+Shift combination had special meaning and that there's no need to activate the menu in response to Alt+Shift. But not anymore.

I can probably teach myself to use Win+Space combination for switching keyboards, which does not suffer from this issue. But Alt+Shift has always felt more convenient for me.

Hm, on my system Alt+Shift works as expected. Does this happen with all open windows or only with specific programs?

altae said:

Hm, on my system Alt+Shift works as expected. Does this happen with all open windows or only with specific programs?

It happens in text editor windows that have the standard menu bar, i.e in windows where a single Alt hit would activate the menu. Notepad window is a good example.

What I do: While holding down the alt key every time I hit shift the keyboard language changes. I tested it with notepad and there is also no problem. Does this technique not work for you?

altae said:

What I do: While holding down the alt key every time I hit shift the keyboard language changes. I tested it with notepad and there is also no problem. Does this technique not work for you?

It does seem to work for me. However, my everyday typing style results in a different timing: Shift key apparently gets registered before Alt key. And for this key sequence menu gets activated, unfortunately.

This is something that did not happen before the AU.