Halo: The Master Chief Collection How to fix the alt tab disappearing bug

First fix:

 
Go into game settings and set this to “BORDERLESS” 
 
 

2nd Fix to keep fullscreen mode enabled:

 
Go into Windows settings, system, multitasking, and set these 2 boxes to “All Desktops” 
 
 

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New update came out that may have fixed the alt tab bug. Guide will still be here incase the bug still exist. 
 

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