Microsoft Report Builder is a stand-alone app for authoring paginated reports, installed on your computer by you or an administrator. An administrator typically installs and configures Reporting Services, grants permission to download Report Builder from the web portal, and manages folders and permissions to reports and shared datasets saved to the report server. For more information about Reporting Services administration, see Reporting Services Report Server (Native Mode).
There are different ways to install Report Builder.
Your administrator can install Report Builder with Microsoft Endpoint Configuration Manager.
And you can install it from several places:
Microsoft Report Builder download