UserAgent: Mozilla/5.0 (Windows NT 6.1; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/56.0.2924.76 Safari/537.36

Steps to reproduce the problem:
1. Must be installed graphics card supports Nvidia's latest driver and the latest version of GEFORCE EXPERIENCE 3.3.0.95 http://www.geforce.com/geforce-experience/system-requirements
In this program, the option "Sharing" must be enabled (see screenshot)
2. The problem is compounded when the installed program Punto Switcher 4.3+
https://yandex.ru/soft/punto/
3. Open https://www.youtube.com/ play a video and put it in full screen or such a site with videos of VK http://ru-chp.livejournal.com/9574043.html

The problem playing about 95% of cases after installing these programs, inclusion and reboot options.

If you just installed GEFORCE EXPERIENCE program and select "Sharing" is not included, it is likely that the taskbar does not appear.
If you include an item that most likely will be the taskbar in the transition to full screen but it will disappear after 1-2 seconds.
But if you have installed the program Punto Switcher 4.3+ and is in the startup and GEFORCE EXPERIENCE and select "Sharing" is not included

What is the expected behavior?
Taskbar in fullscreen mode generally does not appear, even if he appears and disappears after 1-2 seconds it is not correct.

What went wrong?
The taskbar does not disappear when set two programs (need to reboot - Startup programs), and the option "Sharing" at all when entering the full-screen mode.

Did this work before? Yes 54

Chrome version: 56.0.2924.76  Channel: stable
OS Version: 6.1 (Windows 7, Windows Server 2008 R2)
Flash Version: Shockwave Flash 24.0 r0

That forum topic https://productforums.google.com/forum/?utm_medium=email&utm_source=footer#!topic/chrome/V4eaQ5Du9Gs;context-place=forum/chrome