Ok so when I'm trying to view certain photos in my files it keeps coming up with something about my photo viewer not being up to date.

so i go onto the windows viewer webpage and download the new one, I have to manually put it in. No problem
only thing is, when it asks me to rename the old photo viewer file, it says I don't have administrator privileges to do so and my shit isn't working.

please can someone help... I've been trying for about an hour now lol