Certain files, programs or processes of the computer are sometimes blocked and there is no way to close them, because they have been totally hung up and not even pressing Ctrl + Alt + Delete you get them to stop being locked. In those cases, it is best to have a tool like CopyLock.
CopyLock is not a program to unlock files, but its mission is to be able to copy files that are blocked (because they are being used by other programs, such as a DLL) from one location to another, that is, make a copy of the file original locked so that it can be used in another folder.
Thus CopyLock keeps both files, the original locked and a new copy to be used wherever you want. Best of all, you can download CopyLock for free on your PC, although the download will take place through the website of the author of the program.
You can free download CopyLock 32, 64 bit and safe install the latest trial or new full version for Windows 10 from the official site.