The release documentation at https://github.com/Microsoft/sql-server-samples/releases/tag/adventureworks points to `AdventureWorks-oltp-install-script.zip` twice. At the top it points to https://github.com/Microsoft/sql-server-samples/releases/download/adventureworks/AdventureWorks-oltp-install-script.zip Further on (right under the `## Install scripts`) it points to https://github.com/Microsoft/sql-server-samples/releases/download/adventureworks/AdventureWorkDW-oltp-install-script.zip which generates a 404.