PowerPoint File Locked for Editing by ‘Another User’: Fix

You see the message “File Locked for Editing by ‘Another User'” when you try to open a PowerPoint presentation. This happens even when you know no one else is working on the file. The lock file, a hidden file ending in .pptx~lock or .~lock., is left behind when a previous session did not close cleanly. This article explains the root cause of the lock file and provides clear steps to remove it and regain access.

Why PowerPoint Shows “File Locked for Editing by ‘Another User'”

PowerPoint creates a lock file when you open a presentation. This file uses the naming pattern ~$filename.pptx or .~lock.filename.pptx#. The lock file tells PowerPoint that a specific user is editing the file. When you close the file normally, PowerPoint deletes the lock file. If PowerPoint crashes, the PC loses power, or the network connection drops, the lock file stays on the disk. The next time you or anyone else tries to open the file, PowerPoint sees the lock file and assumes another user is actively editing it. The same problem can occur if another instance of PowerPoint has the file open in the background, or if Windows File Explorer locks the file while showing a preview in the Reading Pane.

Steps to Remove the Lock File and Open the Presentation

Follow these steps in order. Stop when the file opens without the locked message.

1. Close all PowerPoint windows and restart PowerPoint
   Save any work in other presentations. Close every PowerPoint window. Open PowerPoint again. Try to open the locked file. If the lock was held by a background PowerPoint process, this clears it.
2. Show hidden files in File Explorer
   Open File Explorer. Click the View tab on the ribbon. Check the box labeled Hidden items. This makes the lock file visible in the same folder as your presentation.
3. Locate and delete the lock file
   Navigate to the folder that contains your .pptx file. Look for a file named ~$filename.pptx or .~lock.filename.pptx#. The filename matches your presentation but starts with a tilde or dot. Select the lock file and press the Delete key. Confirm the deletion if prompted.
4. Open the presentation
   Double-click your .pptx file. PowerPoint should open it without the locked message. If the message returns, proceed to the next step.
5. Disable the Reading Pane in File Explorer
   In File Explorer, click the View tab. Click the Pane button on the left side of the ribbon. Select Reading Pane to turn it off. The Reading Pane can lock a file while generating a preview. Try opening the file again.
6. Restart the PC
   Click the Start button, then the Power icon, and select Restart. A full restart clears all file locks held by the operating system and background processes. After the restart, open the file.

If PowerPoint Still Shows the Locked Message After the Main Fix

The lock file reappears every time I close and reopen the file

This means the file is stored in a location that does not support file locking correctly. Common locations include network drives, cloud sync folders like OneDrive or Dropbox, and USB flash drives formatted as FAT32. Move the file to a local folder such as C:\Users\YourName\Documents. Open it from there. The local folder prevents lock file conflicts.

I cannot see any lock file even with hidden items turned on

The lock file might be hidden by Windows Defender or another antivirus program. Temporarily disable real-time protection. Open File Explorer and check for the lock file again. Re-enable protection after deleting the lock file. If the lock file still does not appear, the file might be locked by a different mechanism, such as SharePoint checkout. Check if the file has a checkmark icon in File Explorer. If it does, the file is checked out in SharePoint or OneDrive for Business. You must check in the file from the SharePoint site or use the online version of PowerPoint to release the lock.

Multiple users see the locked message on a network drive

Network drives often use SMB protocol which can hold file locks after a disconnect. Ask all users to close the file. On the server or the machine hosting the shared folder, open Computer Management. Go to System Tools > Shared Folders > Open Files. Find the .pptx file, right-click it, and select Close Open File. This forces the lock to be released. Users can then open the file again.

PowerPoint Lock File Behavior: Local File vs Network File vs Cloud File

Item	Local File	Network File	Cloud File (OneDrive)
Lock file location	Same folder as .pptx	Same folder on the server	AppData\Local\Microsoft\Office\\OfficeFileCache
Lock file naming	~$filename.pptx	~$filename.pptx	Random hash with .tmp extension
Lock released when	PowerPoint closes normally	PowerPoint closes normally or server times out	PowerPoint syncs changes and uploads
User sees lock message if	PowerPoint crash or power loss	Network drop or another user has it open	File is checked out or sync conflict occurs
Fix method	Delete the ~$ file	Close open file on server	Use OneDrive web to check in or resolve conflict

This table shows that the fix depends on where the file is stored. Local files require deleting the lock file. Network files require server-side lock management. Cloud files require checking in from the web interface. Always try the local deletion method first, as it resolves the majority of cases.

You can now open any PowerPoint file that shows the “File Locked for Editing by ‘Another User'” message. Start by deleting the hidden lock file in the same folder. If the problem continues, move the file to a local folder or disable the File Explorer Reading Pane. For advanced cases, use the Open Files management tool on the server to release stale network locks.