The File Locations step is available if you have selected to install Veeam Backup Catalog at the Review Components and Select Installation Folder step of the wizard and to configure installation settings manually at the Specify Installation Settings step of the wizard.
You can specify location for the guest file system catalog folder. Specify a path to the folder where index files must be stored.
By default, the setup wizard creates the VBRCatalog folder on a volume with the maximum amount of free space, for example: C:\VBRCatalog. To change the location, click Browse.