- How to install Total Defense Premium Internet Security
- How to install Total Defense Ultimate Internet Security
- How to install Total Defense Essential Anti-Virus
- Where can I download my Total Defense Software?
- How to install PC Tune-Up
- How do I install software on additional computers?
- How to Uninstall then Reinstall your product
- How to install Total Defense Internet Security Suite
- How to install Total Defense Unlimited
- How to update Total Defense
- How to open your Total Defense application
- How to Install Total Defense Mobile Security
- How to install Total Defense Mobile Security - Retail
- How To Install Mac Online Backup
- How to Collect Logs
- iPhone not supported
- iPad not supported
- Chromebook not supported
- Windows XP and Vista not supported
- Is it safe to run multiple Security software?
- Uninstall Other Anti-Virus
- System requirements for Premium Internet Security
- System requirements for Ultimate Internet Security
- System requirements for Essential Anti-Virus
- System requirements Essential Anti-Virus for Mac
- System requirements for Unlimited Internet Security
- Help with Product Subscription Activation
Knowledge Base
Welcome to the Total Defense Knowledge Base.