If you want to add a device to your subscription to share with your family:
1. Login to your Total Defense Account
- Note: Be sure to login from the additional device you want to install the product on
2. Download Software
- Click the Download button next to your listed subscription to start the download.
- ...then click on the "Download" button under the operating system that you're installing to
3. Install Software
- Save the file to a known location.
- Double click the saved file and follow the prompts to install the product.
- After installation, follow any additional prompts to register the product.
More detailed instructions for particular systems here:
How to install Total Defense Anti-Virus for (Mac)
How to install Total Defense Mobile Security (Android)
How to install Total Defense Internet Security (PC)
If you need to remove unused devices before you add a devices to a subscription please see our How to deauthorize a computer through an existing subscription article for instructions.