Hi @Anonymous,
Can you upload an screenshot of your installer on the select components screen?
Also run a search through your system for MaterialLibrary2021.msi: (Paths may/will be different)
![search for mat lib.PNG search for mat lib.PNG](https://forums.autodesk.com/t5/image/serverpage/image-id/774824i243E055CF6D690E5/image-size/large?v=v2&px=999)
Leo Warren
Autodesk Student Ambassador Diamond
Please accept as solution and give likes if applicable.