Here are a few ways to resolve this error, mostly related to a program blocking access to the files. Once it is removed, you can copy the files and folders. Turn off Preview pane Close Programs ...

While there are several approaches to managing "in-use" errors in OS X, you can often make use of the Trash to temporarily store these files so as not to disturb your workflow.

Windows says your file is in use because it's open in another program? Learn how to force rename, delete, or move the file.

To fix the Unknown error trying to lock file in Teams, Excel, OneDrive, PowerPoint, SharePoint, etc, Office apps use these proven solutions.

It'll show you a list of all open and locked files in the system, so you can find the offending file handle and close it—or kill the entire process behind it, freeing you up to go on with your ...