Instances that won't close

[CookieMonster]

On my dual monitor setup, I'm presently running 15.70 (Windows10 Build 1024) but on the second monitor XYplorer is not running in the taskbar; but there are three instances of XYplorer running that no matter how many times I close them, there remains constantly three open instances of XYplorer ?

[admin]

Maybe you ticked Configuration | Startup & Exit | Minimize to tray on X close?

[CookieMonster]

Solved. Another software was interfering.

[admin]

What software can prevent XY from closing?

[CookieMonster]

Display Fusion.