[Windows Photo App Default is Changed to Affinity Designer]

Hoping someone can assist me.  Since installing Affinity Designer on my Woindows laptop, all of my photos and images stored on my computer that I use to view using the Windows Photo App, now have to be opened using Affinity Designer.   This is a problem because if I try to search for and attach an image to an email I want to send, the images I can't even see them.   I've tried everything I can think of to make the Windows Photos App the default but not having any luck.   Any suggestions?