Click on a button for video steps , then choose existing user 

1. Access your Sophos Home dashboard  (Check this link for more details about accounts)
2. Click on the Add Device button (or , if you are on the computer view, click Add New device)
   
   
   
   
   
3. Choose the appropriate option: 
   
   
4.  If using the link option, paste the link into a web browser on the computer you wish to protect:  (you can use paste and click Enter, or use "Paste and Go..." ) 
   
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
7. Repeat these steps to protect additional computers, always downloading a new installer for each. 

To install Sophos Home on additional computers, and manage them via the same Sophos Home Dashboard, you'll need to create a Sophos Home account. 

• A Sophos Home account is needed to protect additional systems under the same license. If you do not have a Sophos Home account yet, follow these steps: creating a Sophos Home account.
• Premium users (who purchased a license key), please ensure your License Key is linked to your account: Sophos Home – Activating Premium License keys 
• Ensure the computer you are adding meets the system requirements for installing Sophos Home.
• If you are re-protecting a system, review this article

Sophos Home Premium users can protect up to 10 computers (Windows and/or Mac) within their account, Free users can protect up to 3.
For more information please refer to our FAQ  How many computers can I add to my Sophos Home account?
To manage/restrict access to the Sophos Home Dashboard, please see: Direct Access or Single Sign On