in 2016 after receiving my external HDD, i Moved many of my personal image data to it and encrypted it using advanced attributes option from properties of folder(as in college my HDD was travelling a lot for movies and games in it..), after a while when i upgraded my OS to windows 10 and checked..that encrypted files were not opening only..ienter image description here suppose its certificate issue, that when the files got encrypted a certificate/key was assigned to it by OS, and when i installed new OS on laptop that key was lost with old OS..
Can anyone help to how to see those files..attaching screenshot of attribiute settings and error i receive file opening that fileenter image description here