LockHunter

Files that are used by a process or an application is Windows are set to a locked state, meaning you cannot modify, delete or move them to a different location. Normally, when the file is no longer in use, it is automatically unlocked, but there might be times when this operation is unsuccessful. This is when you get that annoying popup window telling you that the requested operation cannot be completed because the file is open in another application. LockHunter is specifically designed to lend you a helping hand in such cases.

Context menu integration for easy access  

There are two flavors available: a standard installer one and a portable archive. Whichever you choose, the interface and usage is the same but, as expected, the portable tool requires no installation and is ready to go as soon as you double-click on its executable file. 
If there was to describe LockHunter in a single word, that would probably be “easy-to-use". The GUI welcomes you with usage hints that allow you to get acquainted with the application. For instance, here is where we discovered that LockHunter features shell integration in Windows, allowing you to easily check which process or application is keeping a file locked.

Unlock and delete files or terminate locking processes 

To find the name of the process that is keeping a file or a folder locked, you must enter its name in the upper form. Alternatively, you can browse for a file or a directory. LockHunter displays information about the location of the locking processes by default, but you can also see the process ID and the command line parameters.
With LockHunter, you can then unlock a file, delete or rename it. With the click of a button, you can terminate the locking processes and delete them from disk. However, please keep in mind that this application does not make it possible to delete any file on the system and that there might be other reasons why getting rid of the file is not allowed.

A tool to unlock files on your computer 

With LockHunter, you can check processes that keep a file or a folder locked and terminate them or delete that particular file entirely. However, there might be situations when a file or a folder is impossible to unlock, such as when a file is part of the operating system and cannot be erased without damaging Windows.