PowerPoint Error ‘Slide Library Is Read-Only’ on Asset Push: Fix

When you try to push slides from PowerPoint to a shared Slide Library, you may see the error message Slide Library Is Read-Only. This usually happens because the library folder on the network or SharePoint site has permissions that prevent writing, or because the Slide Library feature itself is configured to block incoming content. The error stops you from updating or distributing slides to your team. This article explains why the read-only error occurs and provides step-by-step fixes to resolve it.

Why the Slide Library Displays the Read-Only Error

The Slide Library feature in PowerPoint allows users to store individual slides in a shared folder for reuse across presentations. When you push an asset (a slide) to the library, PowerPoint writes a .sldx or .pptx file into that folder. The Slide Library Is Read-Only error appears when PowerPoint cannot write to the destination folder. The root cause is almost always one of three things:

First, the folder where the Slide Library is stored may have its NTFS or SharePoint permissions set to Read for your user account. Second, the folder or one of its parent folders may have the read-only file attribute enabled in Windows. Third, the Slide Library database file (Slidelib.xml) may be corrupted or locked by another process. In rare cases, the error occurs because the Slide Library is hosted on a SharePoint site where the library settings have been changed to deny uploads.

Permission Layers That Block Writes

Permissions stack from the file system up to the application. Even if you have full control in SharePoint, NTFS permissions on the server can override them. Similarly, if a network share is mapped with read-only credentials, PowerPoint cannot write regardless of folder-level settings.

Read-Only Attribute Behavior

Windows applies the read-only attribute to folders differently than to files. When you check a folder’s Properties dialog, the read-only checkbox often appears filled (not checked). This indicates that some files inside the folder are read-only, but the folder itself is not. However, if the checkbox is solidly checked, the entire folder is read-only, and PowerPoint will refuse to write to it.

Steps to Remove the Read-Only State and Restore Write Access

Follow these steps in order. Test the push operation after each step to see if the error is resolved.

1. Verify and change folder permissions
   Right-click the Slide Library folder in File Explorer and select Properties. Go to the Security tab. Select your user name under Group or user names. Under Permissions for Users, confirm that the Allow column has checkmarks for Modify and Write. If not, click Edit, select your user, check the Allow boxes for Modify and Write, then click Apply and OK.
2. Clear the read-only attribute on the folder
   Right-click the Slide Library folder and choose Properties. On the General tab, under Attributes, if the Read-only checkbox is filled or checked, uncheck it. Click Apply. In the confirmation dialog, select Apply changes to this folder, subfolders and files. Click OK. Wait for Windows to apply the change.
3. Check parent folder attributes
   Repeat step 2 for the parent folder of the Slide Library. A parent folder set to read-only can prevent writes to child folders even if the child folder itself is writable.
4. Run the Slide Library Repair Tool
   Press Win + R, type slcrepair.exe, and press Enter. The tool scans for corrupted Slide Library databases and attempts to repair them. Restart PowerPoint after the repair completes.
5. Re-register the Slide Library in PowerPoint
   Open PowerPoint. Go to File > Options > Add-ins. At the bottom, next to Manage, select COM Add-ins and click Go. Uncheck any add-ins related to Slide Library (such as Slide Library or SharePoint Slide Library). Restart PowerPoint. Then go back to the same location and re-check those add-ins. Restart PowerPoint again.
6. Map the network drive with different credentials
   If the Slide Library is on a network share, disconnect the current drive mapping. Open File Explorer, right-click Network, and select Map network drive. Choose a drive letter, enter the folder path, and check Connect using different credentials. Enter an account that has write permission to the library folder.

If the Error Persists After the Main Fix

PowerPoint Shows Read-Only Error Only for Specific Slides

If you can push some slides but not others, the individual slide file may be locked by another user. In a Slide Library, each slide is a separate file. Ask your team to close any presentations that contain that slide. Alternatively, check the file in the library folder to see if it has a .lock file next to it. Delete the .lock file if no one is actively editing the slide.

Error Appears After Moving the Slide Library to a New Location

When you move the Slide Library folder, PowerPoint still points to the old path. Open PowerPoint, go to File > Options > Advanced. Scroll to the Slide Library section and click Change Location. Browse to the new folder location and click OK. The read-only error occurs because PowerPoint cannot find the library at the old path, so it treats the missing location as unreadable.

SharePoint Slide Library Shows Read-Only Despite Full Permissions

In SharePoint, the Slide Library may have versioning settings that require checkout before editing. Go to the SharePoint library settings, click Versioning settings, and set Require Check Out to No. Also ensure that the library’s permissions include Contribute or Edit for your user account. SharePoint permissions override folder permissions in hybrid environments.

Item	Local Network Share	SharePoint Online
Permission location	NTFS Security tab and Share Permissions	SharePoint Site Permissions and Library Settings
Read-only attribute	Applied via File Explorer Properties	Not applicable; controlled by library settings
Lock files	.lock files created by Office apps	Check-out status in library
Repair tool	slcrepair.exe works on local and network paths	slcrepair.exe may not resolve SharePoint-specific permission issues
Typical fix	Clear read-only attribute and grant Write NTFS permission	Set Require Check Out to No and grant Contribute permission

You can now diagnose and fix the Slide Library Is Read-Only error by checking folder permissions, clearing the read-only attribute, and running the Slide Library Repair Tool. If the issue remains, examine SharePoint versioning settings and verify that no lock files exist on individual slides. As an advanced step, use Process Monitor (procmon.exe) to filter for ACCESS DENIED events on the library folder to pinpoint the exact file or registry key blocking the write.