Alt-Tab is a built-in OS function and hence, you cannot disable it per se, unless you modify the registry. But, as an easier alternative, you can remap/rebind the key while in the game. In this post, ...
If you’ve come to expect a certain behavior from Windows’ Alt + Tab shortcut—that it will cycle through all open windows—you may be thrown for a loop when using Microsoft Edge as your browser.
There are a few keyboard shortcuts on Windows computers that nearly everyone knows: Ctrl + C to copy, Ctrl + V to paste, maybe even Ctrl + Shift + Esc to open the Task Manager, Ctrl + Alt + Delete to ...