Introduction
This article covers the steps required to install CMS 8.1 RU4 on a Windows Server 2012 R2 that already has SMP 8.1 RU4 installed (That installation was covered in a previous article).
It will also go over a number of verification steps that will help you validate the install.
Installation
Install New Products:

Optional Installations:

End User License Agreement:

Install Readiness Check:

After the requirements had been installed by SIM as well as manually:

Review Installation Details:

Once you get to this point you need to wait until all files have been downloaded and validated before pressing the [Begin install] button.
Installing Software:

Once the components are installed they get configured:

Back up Notification Server Cryptographic Keys:


Product Licensing:

Installation Complete:

Installed Products:

Install Updates:

End User License Agreement:

Install Readiness Check:

Review Installation Details:

Installing Update:

Update Installation Complete:

Verification
Items highlighted in red indicate that they were created by the CMS installation.
Installed Products:

Appliction Pools:

Web Sites:

Web Site applications:

Scheduled Tasks:

Services:

Processes:

Shares:

Symantec Management Agent:

Conclusion
This article has taken you through the installation steps required to install CMS 8.1 RU4, as well as covered a number of verification steps that will help you validate the installation.