Hello,
You may need to install AutoHotkey tool to block Win + Alt from being used by Windows and allow your app to detect it.
Check WinDivvy's documentation or settings to see if it has an option to prioritize its own shortcuts over system defaults.
You can also create a new DWORD (32-bit) Value named DisabledHotkeys under
HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced in Registry Editor. But I'm unsure what the value should it be, or will it also block hotkey in the app. Therefore, I recommend using AutoHotkey.
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