How to solve “You need permission to perform this action” error

Question

I need permission to move or copy or open or really do anything to this one .dll file which I NEED to move, it's located on a mounted .iso.

I've tried

• using administrator log in and it won't allow me to do anything with the file
• takeown in CMD
• looking at the folder properties that the file is contained in for security settings, and the folder only has "general","sharing","customize" tabs.
• every answer to this question i've seen, and none have worked

Some extra info: Yes, the security tab is visible in other folder properties

Answer 1

An ISO-9660 filesystem is usually read-only, and the only way you can modify it (whether it is a CD or an .iso image) is to extract all files and rebuild, or to use a tool such as WinImage or MagicISO.

(The "Security" tab is not visible because ISO-9660 does not support it.)

If you cannot even read a file, it might be caused by

• another program keeping it open and locked; try Process Explorer or Unlocker;
• an antivirus gone mad;
• the filesystem being corrupted.

Unmount the image and open it in MagicISO or WinImage, then see if you can access the file.