Windows 10: Fixed Can't delete it for some reason

Hello, my name is Daniel and a friend of mine has recently told me to use custom desktop themes. So, from the image as you can see, I've done it. But the problem is, I wanted to bring it back to default. I have tried doing some research on google. I uninstalled the app that used this theme, restarted my PC and it's still here. I have tried deleting IconCache file in AppData, still didn't work. I am stuck in this loophole trying to figure out how to restore it back to default.

:)

 

2 x SSD Raid 0 - is this right?

T ski b4 your done with this post can you list a step by step fix of what you did, I would appreciate it if you would...Thanks

 

Programs not working

In post 26 there were steps listed to fix the operating system corruption.
Are you able to follow them?
In post 29 was the suggested dism repair command.

 

Unable to delete a folder - Invalid folder name


Suggestion:

1. Run chkdsk x: /r to make sure that there's no HD corruption.
   x: is the drive containing the folder you want to delete.
2. Try to delete the folder again. If still does not work, go to step 3.
3. Download: Download - Linux Mint and create a bootable USB using: Rufus - Create bootable USB
4. Boot up with Linux Mint and try to delete the folder again.
   NOTE: Unlike WinPE. Linux does not have any Windows permission imposed to it so it is easier to delete.