Lock custom material library

To prevent unwanted changes, use the Windows Explorer property to specify a read-only file.

Autodesk installed libraries are locked.

1. In Windows Explorer, navigate to the folder that contains a material library.
2. Right-click the library (.adsklib), and click Properties.
3. Check the read-only file attribute.
4. Click Apply, and OK.

Note: A library is locked automatically when a library is being edited. The lock is released by clicking the pencil icon or by closing the library