Sophos Home Premium users can protect up to 10 computers (Windows and/or Mac) within their account, free users can protect up to 3. 
To install Sophos Home on additional computers, or re-protect a system, users have to either log in to their dashboard from the computer they want to protect, or copy a dashboard link to send to the appropriate computer to download and install Sophos Home.

Note: These steps should also be used for customers trying to protect macOS 10.12 systems 

Before installing Sophos Home  on additional computers, make sure that you:

• Have a Sophos account to access Sophos Home dashboard. If you do not have a Sophos Home account yet, follow the steps on creating a Sophos Home account.
• Check the computer you are adding meets the system requirements for installing Sophos Home.
• If you are re-protecting a system, review this article 

Steps to protect additional computers with Sophos Home

macOS 

Windows

Instructions

1. Log in to your Sophos Home dashboard (If you do not have a Sophos Home account yet, follow the steps on creating a Sophos Home account)
2. Click any of the  Add Device buttons (or , if you are on the computer view, click Add New device)
   
   
   
   NOTE:- If no other computers are present on the dashboard, you will see a Download button instead of Add Device, and the shareable link will be displayed at the bottom: 
   
   
   
3. If you are accessing the dashboard on the computer you want to protect, click Install (or, if no other computers are listed, click Download)
   Otherwise, if you want to send the link to another computer:
   Copy the link at the bottom of the Add Device window. Send this link via email or instant message to the desired computer.                                                                                     
   
   Note: macOS 10.11 users, please use the Click the button below to install on this computer method (you will need to access the dashboard directly from the computer you want to protect) .  
   
   
4.  Once sent, paste the link into a web browser on the computer you wish to protect: 
5. Click the Download button to start downloading the installer.
6. Double-click on the downloaded installer and follow the on-screen instructions to install Sophos Home

To protect mobile devices see: Sophos Intercept X for Mobile - Guide for Sophos Home customers

Related Information

• Checking the operating system information
• Additional steps for Sophos Home installations on MacOS 10.15 Catalina