Under normal circumstances, a file which is currently in use by any application in Windows may not be moved or deleted. This is sometimes unavoidable (in the case of files like Thumbs.DB), but there is a program which can help you out: IOBit Unlocker.
This program is a free utility which unlocks files which are currently being used by the operating system or by other programs. It's as easy as using your right mouse button and clicking from within Windows Explorer. It integrates seemlessly into the Window Shell.
After having unlocked a file, you would then be allowed to copy, rename, delete or move files. In cases when this fails, you can use IOBit's Force Mode which closes the program or process which is currently using the file in question.
In short, if you want to unlock files or folders currently in use, IOBit Unlocker is an excellent, free choice.
IObit Unlocker is licensed as Freeware for Windows (32-bit and 64-bit) operating system / platform from file organizer software without restrictions. IObit Unlocker 1.1 is available to all software users as a free download (Freeware).
Compatibility with this folder unlocker software may vary, but will generally run fine under Microsoft Windows 10, 8, 8.1, 7, Vista and XP on either a 32-bit or 64-bit setup. A separate x64 version may be available from IObit.
We have tested IObit Unlocker 1.1 against malware with several different programs. Please review the test results. We have not certified this program as clean. [Read more]