If you open up Windows Server Manager, go to Roles and Features and then click on the IIS Web Server Role and make sure:
a) You have the IIS Web Server Role installed:
![](/Support/Attachment/151975.aspx)
b) Make sure that the following features are enabled within the 'Internet Information Services'
![](/Support/Attachment/151976.aspx)
b) You have the IIS Web Server - Application Development features enabled:
![](/Support/Attachment/1719.aspx)
c) You have the following .NET Features installed:
Also, please check that the following features are enabled in the '.NET Framework 4.6 Advanced Services' folder:
![Image](https://spiradoc.inflectra.com/Spira-Administration-Guide/img/Installing_SpiraPlan_13.png)