Table of Contents
- Introduction
- 4 Steps to working with in use or open files
- Using Unlocker to work with in use files
- Conclusion
Watch the video companion to the tutorial
here!
Introduction
One of the more frustrating experiences when using a computer is when you want
to delete or rename a file or folder in Windows, but get an error stating that
it is open, shared, in use, or locked by a program currently using it.

Error Deleting File or Folder
You start to shut down every program running on the computer hoping that you
will be lucky and be able to delete the file, but it still won't delete. What
do you do? This tutorial is designed to answer these questions and provide methods
that will allow you to delete or remove practically any file in Windows.
4 Steps to working with in use or
open files
When attempting to delete or rename a file or folder you should follow these
steps in the following order:
- The first, and easiest method, is to shut down any programs that
may be currently using that file. When a program is using a file
it tends to exclusively lock that file so it can't be modified or renamed
while it's in use. By shutting down the program using it, you unlock that
file or folder so that you can work with it.
- Reboot your computer. When you reboot your computer, this
will shut down any open programs and hopefully on reboot allow you to work
with the file in question.
- Reboot into safe mode and try to rename or delete the folder. When
you are in safe mode a limited number of programs start up automatically.
This provides a greater chance or being able to rename or delete a stubborn
file or folder.
- Last but not least, download a file unlocking utility.
File unlocking programs will find the processes that are using the file and
attempt to close them or disconnect their connection to the file or folder
so they can be deleted, renamed, or otherwise manipulated. These programs
tend to do the work for you so you do not have to deal with the headache of
finding the program that is keeping a file open. In the next section we explain
how to use one such program, called Unlocker.
Using Unlocker to work with in use and open
files
If you are still reading this, then you must be at step 4 above. To help solve
this problem, we introduce a program called Unlocker.
Unlocker is a program that kicks in when Windows can't delete or rename a file
and provides a series of options for enabling you to do so.
The first step is to download the Unlocker program. This program can be downloaded
from the following link:
Unlocker Download Link
Once the program is downloaded, save it to your desktop and double-click on
the file to start the setup program. When the installation program starts, keep
pressing the Next button until you get to the Choose
Components page as shown in the figure below.

Unlocker Choose Components in Setup
Make sure there is a checkmark next to each component, as shown
above, and then press the Install button. Unlocker will install
and when it is completed you should click on the Finish button.
Now that the program has been installed, Unlocker will have added
a autorun statement to your registry to start the Unlocker Assistant
when Windows starts. This background program stays resident and detects when
you try to delete, copy, rename, or move a file that is in use. When it detects
one of these operations, it automatically open up a Window in order to assist
you in working with the file. An example is shown below.
In our example, we are trying to delete a file called E:\Test\Readme.doc.
When we try to delete the file Windows tells us the file is being user by another
person or program and that it cannot delete it. It also suggests we close any
programs that might be using the file and try again. Well since we already tried
the previous steps, we know this won't work and press OK.

Error Deleting File or Folder
With Unlocker installed, when you press the OK
button to exit the error, Unlocker Assistant will automatically launch to help
you delete the file. An example of this is shown in the image below.

Unlocker Assistant
This shows that two processes have open file handles to E:\Test\Readme.doc
and they are C:\Windows\System32\cmd.exe and C:\Windows\System32\more.com. Since
we want to delete the files, we change the pull down menu from No action to
Delete and then click on the Unlock All button.
What this does is delete the open file handles that the two programs have open
to the Readme.doc file and then attempts to delete the file.
If Unlocker still has problems deleting the file after closing
its file handles, it will ask you if you want to delete the file on reboot as
shown below.

Delete the file on reboot
If you specify Yes, then Unlocker will add a
setting in Windows to delete the file on the next reboot. For the most part,
this last method should be able to delete most files.
If you choose not to let the Unlocker Assistant start when Windows
starts, then you can always just right click on a file and folder and select
Unlocker to get into the Unlocker Assistant as described above.
Conclusion
With this information you now know that living with stubborn files is not your
only answer. Before, working with a truly stubborn file was the province of
a more experienced computer user, but not anymore. Now with programs like Unlocker,
even a casual or beginning computer user can take back control of their computer
and its files.