Errors

The operation can’t be completed because the item “name” is in use: what to check on a Mac

By the Noah team·Updated September 13, 2026·6 min read
Short answerThe error behind this message is a “busy” result from the disk or file server during a delete, move, or copy. It is not proof that an app has the file open. In our tests, an open file did not cause it on a Mac’s own disk or on external drive formats.
  • On a network share or NAS: another computer may have the file open, and this Mac cannot see it.
  • On this Mac or an external drive: wait a few seconds and retry, then quit apps that used the file, then restart.
  • If the message says the item is “being used by another task”, that is a different problem: a leftover copy marker.

You try to delete, move, or copy something, and Finder refuses: The operation can’t be completed because the item “report.pdf” is in use. It names the item, but not what is using it.

Where the item lives decides what to check. A file on a network share fails for different reasons than one on this Mac’s own disk.

What the message means

Finder asks the disk, or the file server, to delete, move, or copy the item. The error behind this message is a “busy” result from that request.

Many guides say it means an app has the file open. We tested that on a Mac running macOS 26. Finder moved and copied files that other programs had open, on the Mac’s own disk and on external drive formats. So an open file alone is not the whole story.

The item is on a network share or NAS

The item is on a file server or NAS box, reached through Finder’s Network section or a server address.

Macs usually reach these servers with a file-sharing method called SMB. The rules for SMB let a server refuse a file when another open copy of it blocks sharing. That other copy can be on a different computer, which this Mac cannot see.

macOS turns that refusal into a “busy” error on this Mac. Apple’s published source code for the Mac’s SMB connection shows this step.

There is also a reported case with no obvious holder. In October 2025, one TrueNAS owner described it on three Macs. A folder created from one user’s Mac could not be deleted from another user’s Mac. Changing the server’s locking settings did not help, and the same thing happened on a Synology server. No cause was confirmed.

Fixask whether anyone else has the file open, or check the server’s own list of open files. If nobody does, eject the share in Finder, reconnect, and try once more.

The item is on this Mac or an external drive

The item is on the Mac’s own disk, or on a USB or Thunderbolt drive.

We found no documented cause for a lasting refusal on a Mac’s own disk. The steps below are cheap and do not change the file.

Fixwait a few seconds and retry. If it still fails, quit the apps that used the item and retry. If it still fails, restart the Mac, which closes every program.

To see which programs have files open on an external drive, use lsof, a Terminal command that lists open files. Give it the drive’s folder under /Volumes.

zsh — Terminal
% sudo lsof /Volumes/MyDrive

Replace MyDrive with the drive’s name. sudo runs the command as an administrator, so it asks for your Mac password; it only reads the list and changes nothing. Without sudo, lsof lists only programs running as you, and system programs are missing. Each row is an open file; the first column names the program.

A program listed there is a lead, not proof. Quitting it is cheap, so quit it normally and retry.

If it says “being used by another task”

Finder says the item can’t be moved or opened “because it’s being used by another task, such as moving or copying an item”.

While Finder copies a file, it marks the copy as unfinished. If the copy was interrupted, the mark can stay behind, and Finder keeps refusing the item. We reproduced that refusal on test files.

The mark is stored in a hidden attribute on the file. It starts with the bytes 62 72 6F 6B.

zsh — Terminal
% xattr -px com.apple.FinderInfo ~/Desktop/report.pdf
Sample result
62 72 6F 6B 4D 41 43 53 00 00 00 00 00 00 00 00
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00

A first line starting 62 72 6F 6B is the leftover copy mark. Anything else, or “No such xattr”, means this is not the problem.

Fixif the copy mark is there, first make sure no copy is still running. Then remove the mark with xattr -d com.apple.FinderInfo followed by the file’s path. This also clears that file’s Finder color label and other Finder flags. The file’s contents are not touched.

Why not force-delete it

Guides often suggest deleting the item in Terminal with rm -rf. That skips the Trash, so there is no undo, and a mistyped path deletes the wrong thing.

It also tells you nothing about why Finder refused. On a network share, the other computer holding the file is still there.

What Noah can determine on this Mac

NoahNoah can show which drives and network shares are mounted, and how full they are. If you find a program holding the file, it can send that program a signal to stop it. Save your work in that program first.

Noah cannot name which program holds a file, and it cannot work that out from the list of running programs either. It cannot check a file for the leftover copy mark either. And it cannot see who has a file open on a server or another computer.

The short version

  • The error behind the message is a busy result. It does not prove an app has the file open.
  • Network share: another computer may hold the file. Ask, check the server, then reconnect.
  • This Mac or an external drive: retry after a few seconds, quit apps, then restart.
  • “Being used by another task” is a different message: a leftover copy mark.
  • Deleting with rm -rf skips the Trash and cannot be undone.
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Frequently asked questions

Why does my Mac say the item is in use when nothing is open?

The error behind the message is a busy result, not proof that an app has the file open. On a network share, another computer may have the file open. On this Mac, wait a few seconds and retry, then quit apps and restart.

Does quitting apps fix “the item is in use”?

Sometimes. In our tests, an app with the file open did not stop Finder on its own. Quitting apps is still a cheap step before a restart.

Can I force delete a file that is in use?

You can with rm in Terminal, but it skips the Trash and cannot be undone. On a network share, it does not change what the other computer is doing.

What does “being used by another task” mean?

Finder thinks a copy of that item never finished. If no copy is running, the leftover mark can be removed with xattr. That also clears the file’s Finder color label, but not its contents.

Keep readingWhen a copy fails with error -36 →When Finder keeps crashing →Find what is filling your Mac →

Commands in this guide are standard, read-only macOS diagnostics unless noted; anything that changes your system is called out. When in doubt, back up first with Time Machine.