Configure the Windows 10 Screensaver Pictures Slideshow: UPDATED
У вашего броузера проблема в совместимости с HTML5
Windows 10 allows you to use a specified folder of pictures as a screensaver slideshow but in newer versions of Windows 10 they changed where you set it up for some reason. This video will show you how to configure a photo slideshow in just a few easy steps.
https://www.onlinecomputertips.com/support-categories/windows/652-windows-pictures-screensaver