If you want to transfer a file or a folder, you better close it beforehand.
However, there are abnormal situations.
That is, you keep receiving this error alert even you have closed the target file or folder.

This issue is annoying.
How to Fix File In Use/Folder In Use on Windows 10/11?
We collect some useful methods to help you remove the File In Use or Folder In Use error.
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How to Remove File In Use or Folder In Use Error on Windows 10/11?
So you’re able to also try this method to help you out.
At times, you think you have closed the app.

But it is not like that.
you could do this job using Task Manager.
you’re free to also try this method.
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If not, you gotta show file extension in advance.
Step 1: Show File Extension on Windows 10/11
How to Show File Extension on Windows 10?
How to Show File Extension on Windows 11?

Windows 11 is getting a new file system - ReFS.
In this post, we will introduce some related information about it to help you better understand it.
Method 6: View Files or Folders in Details
This method is strange.

It is easy to do this.
Then, the files and folder on that location will be displayed with details.
It works on Windows 11, Windows 10, Windows 8.1/8, and Windows 7.

This software has a trial edition.
you’re free to use it to scan the drive you want to recover data from.
you could just try the methods mentioned in this post to help you out.
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