How To Clean Up 8.1 System And Folder That Not Allow To Delete Or Move

I was trying to clean up my 8.1 system and encountered a folder that it won't allow me to delete or move. It is in C:users[me]appdatalocal emp and is named rarsfx4. It appears to have been used by my AV pgm., Bitdefender, at install time. When I attempt to delete it, it asks me if I want to move it to the recycle bin. I click Yes. Then it says I need to provide administrator permission to delete it. I click Continue. Then a little window pops up and quickly disappears that says '234 items recycled.' Then another window appears that says 'You require permission from xxxme to make changes to this folder' and gives me only the option to try again, which just repeats this last process. xxx is my PC name, and xxxme is my user profile name, not any user account name that shows up in Control Panel, User Accounts. (I have only one user account, which is a network one, my gmail ID.) When I check Properties, Security, for the folder, I see that System, my network user account (which is an administrator), and Administrators (xxxAdministrators) all have full control. When I click on Advanced under Security above, the owner is displayed as Administrators (xxxAdministrators).

I also tried deleting the folder using Command Prompt, Run as administrator, but get 'access denied' for every file.

My questions are what is going on here, and what can I do to remedy it?