Reinstalling Microsoft Store and Windows Photos App

The initial issue I was having was that my photos app was not working and most windows app icons didn't show at all. They were just blank blue color and the photos app would not even launch.

The fact that the app wouldn't even work at all told me something was up, so after that I started looking deeper around the os and trying to find a solution.

One solution told me to use command prompt reinstall the photos app, but first I would have to uninstall and reinstall the microsoft store. Unfortunately the command does not recognized the commands its asking for to reinstall things so no luck there.

Somehow I have no photos app and my microsoft store is gone from 10.

I have already tried resetting windows with a full erase - icons are still blank and the microsoft store is still not working. SFC /scannow will not fix the issue, so what can I do to solve this. I've tried reset hoping windows would return to its default factory state, but somehow my custom power profile/folders are always there and the photos app is missing and neither microsoft store or photos works correctly.

I should not that I upgraded from 7 to 10, so that might be causing reset issues.

I've noticed that since several apps seem to be messed up the os seems more sluggish.
I noticed this ever since I modified the trusted installer security stuff 2 resets ago all so I could have my own custom alarms sounds in the windows folder. Following a youtube tutorial and modifying trusted installer/my own username account settings has made something go terribly wrong when all I wanted to do was use my own custom alarm sounds renamed alarm1.wav-alarm8.wav

I'll never change my alarms sounds again after so much of an issue.