Unable to open pictures in Photo Gallery - 'Windows cannot access the specified device, path, or file. You may not have the appropriate permission to access the item'

When I try to open a picture in my photo gallery, it says I don't have the permission, when it was working just earlier today. I have tried restarting my computer and also going in from the desktop and going through my pictures library there, but still no change. It says "Windows cannot access the specified device, path, or file. You may not have the appropriate permission to access the item." When I try to open photo gallery on the start screen, it opens and then closes right back down. This happens the same with my calendar app. What do I do now?

I am experiencing the same thing when trying to access a file on a mapped network drive. I have full administrator access and I am able to open the same files using the Paint app or other photo app.

Once I try to access a photo located on a network, I get the  "Windows cannot access the specified device, path, or file. You may not have the appropriate permission to access the item." message. Subsequent attempts to open the Photo app will momentarily open the splash screen and then close right away. The only way to fix it so I can at least see local photos is to reset the app or reboot the computer.

If you have Kaspersky Internet Security then it might be blocking the apps. Go to application activity --> select all. You will find *.html files belonging to the apps are marked as untrusted. Mark them trusted and then app should launch without any problem.