"Alt-Tab" to desktop: game gone from taskbar, cannot activate game again

[_jason_wart_]

When I'm playing games on Steam (any game) I need to alt-tab back to my windows desktop to do non-game related activities. For a while now I noticed that the game I'm playing does not show on the taskbar anymore after alt-tabbing back to my desktop. I looks like the game shut down.
However, when I open the Task Manager the game is still running. I just seems like the taskbar icon that allows me to maximize the game screen is suddenly gone. Unfortunately I don't know how to maximize the game again from the Task Manager, so the only thing I can do is shut down the game through the Task Manager.

Anyone has any ideas on how to fix this? I have this with all games I play. I'm running Win10 64-Bit Pro edition, with just one monitor.

[_jason_wart_]

I seem to have find the solution on Reddit: https://www.reddit.com/r/wargame/comments/5a31p6/alttabbing_causes_game_to_disappear/

[_jason_wart_]

And here is what Eugene has to say about it: http://forums.eugensystems.com/viewtopic.php?f=174&t=57990

[ReBoot]

Run the games in borderless windows instead of fullscreen.

[Dazel]

hi

[Counqueror]

ASDSAD