Windows 10: Taskbar is hidden when I alt-tab out of a game

I'm running Windows 10 and if I'm running a game fullscreen, or borderless window, then my taskbar is completely invisible if I alt-tab out of the game.It shows up on my second monitor, but it's extremely aggravating to alt-tab and not be able to quickly check something on my primary monitor.

:)

 

Weird alt-tab out of fullscreen games.

Hi Simon,

The multitasking capability of a game depends on the total memory of your computer. If you have large amounts of RAM on your computer, it can multitask heavy programs easily like high-end games. To ensure that we can provide the appropriate resolution
for your concerns with the alt-tab function, we’d like to ask you a few questions:

• What were the recent changes made on your computer before you experienced this issue?
• When did the issue start?

• Have you pressed the alt-tab key during you play Rainbow Six Siege? Or it just happen without pressing it?
  
• Does the automatic ALT-TAB behavior happens on other games?
• Do you have any other programs running on your computer while playing?
• What is the anti-virus program you're using?

• What is your device or system specifications? To know, follow these steps:
  1. Press Windows + S and type
     About your PC.
  2. Send us the information listed under Device specifications.
  
  

Moving forward, if you're multitasking while playing, we recommend that you play this game only without doing other tasks. Pressing ALT-TAB or performing a multitasking interferes with the performance of your video card, especially if you're running a heavy
game like Rainbow Six Siege. It will generate screen viewing issues like intermittently switching your game screen between your desktop environment.

For now, restart your game and do not press ALT+TAB while playing. This will allow your video card to dedicate its graphics performance on the game only instead of your desktop environment.

If you would like me to provide additional advice, simply respond to this thread. I will get notified and I’ll reply to you as soon as I can.

 

Taskbar glitches when alt-tabbing


While this isn't a serious problem, it's definitely a hell of an annoyance. When I alt-tab from several full-screen games, such as League of Legends, this is the result, sometimes it differs. In the image below, you can clearly see that something's wrong with the taskbar. I would also like to tell you, that when I hover the cursor on the taskbar, they return to normal.

 

Random Alt-Tabbing out of games !?

Alt-Tab & WinKey-Tab are not the only ways of switching. Perhaps you are accidentally hovering over or clicking on the right-hand end of the Taskbar. That Peek facility can be turned off.

Turn On or Off Peek at Desktop - TenForumsTutorials Denis