I copied my files from an old PC to the new PC and wasn't thinking. I right clicked on the C:\Users\USERNAME folder, went to properties, Security, Advanced, and made myself owner, then made sure Owner, System, Administrators, and USERNAME all have Full Control over the folder. I checked the boxes to change this for all sub folders and files.
Since then, I'm unable to open up (I think) any Modern Apps, unable to open Cortana, Start Menu, etc. I'm hoping this is an easy fix; I'd rather not recreate the entire profile. Please help!