It's just the mouse traces of snow flakes under For example, Windows 10 from Ver. 1.21 to appear!
As you can see above in Windows 10 shot screenshot, you can change the mouse tracks for Advent and Christmas time to Christmas snowflakes. However, you can easily and safely use this Christmas Snowflake on older versions of Microsoft's Windows operating systems during Advent and Christmas, whether it's a Windows desktop, tablet, Surface Pro / Go, or even a server operating system. These are simple yet decorative snowflake mouse tracks on any Windows desktop operating system.
By the way, these digital or virtual Christmas snowflakes on the desktop can under certain circumstances ensure that an Advent atmosphere develops in the run-up to Christmas and have a positive effect on the well-being. However, if you are not enough and want to increase the pre-Christmas time effect, you can use DesktopSnowOK to intensify the snowflake soothing effect