Why Cant I Delete, Edit, or Rename a File That Is in Use? Windows prevents you from deleting, moving, or renaming files that are in use to keep your computer system stable.

If you cannot delete a file or a folder on an NTFS file system volume in Windows, follow the solutions mentioned in this post to resolve the issue.

We explain why you might not be able to delete OneDrive files or folders on your Windows PC and the best solutions to fix the issue.

It won't delete, saying it can't be deleted until the correspding server it was once syncronized with is brought back online. That's not gonna happen, so how do you delete that one folder?