Installation of Exchange 2016-Installing Office Web App server
Office Web Apps Server is a kind of new Office server product which delivers browser-based versions of Word, Excel, PowerPoint, and OneNote. Single Office Web Apps Server farm might support users who access Office files via SharePoint 2013, Lync Server 2013, Exchange Server 2013, websites, and shared folders. As it is used in several products, it is suggested to have this setup and installed in your environment.
With previous editions of Exchange, WebReady Document Viewing is built in to Exchange. Along with the OWAS integration in Exchange 2013, SharePoint 2013 and Lync Server 2013, when a user wish to preview an Office attachment, Exchange/SharePoint/Lync builds a Web app Open Platform Interface [WOPI] call to the Office Web Apps Server that renders the document instead.
Learning to Install prerequisites
Login to the server and open PowerShell
Copy and paste the following command:
Add-WindowsFeature Web-Server,Web-Mgmt-Tools,Web-Mgmt-Console,Web-WebServer,Web-Common-Http,Web-Default-Doc,Web-Static-Content,Web-Performance,Web-Stat-Compression,Web-Dyn-Compression,Web-Security,Web-Filtering,Web-Windows-Auth,Web-App-Dev,Web-Net-Ext45,Web-Asp- Net45,Web-ISAPI-Ext,Web-ISAPI-Filter,Web-Includes,InkandHandwritingServices –restart
After restart, run windows update again. You may need to do it a couple for times prior to everything are up to date.