Starting with AutoCAD 2024-based products, the Autodesk Base Resolution Materials Image Library is installed by default and can no longer be uninstalled separately.
For renderings that require higher resolution materials, you can download and install the Autodesk Medium Resolution Materials Image Library. For information on installing the Autodesk Medium Resolution Materials Image Library, visit https://www.autodesk.com/adsk_medium_resolution_materials_library.