1. Click the Windows Start button, then type Windows Security in the search box, and select Open in the Windows Security panel.
2. Select Virus & threat protection in the left panel.
3. Your default antivirus application appears at the top of the Virus & threat protection screen.

1. Click the Windows Start button, then type Windows Security in the search box, and select Open in the Windows Security panel.
2. Select Virus & threat protection in the left panel.
3. Your default antivirus application appears at the top of the Virus & threat protection screen.

1. On your keyboard, press the Win and X keys simultaneously.
2. Select Control Panel from the menu that appears.
3. Follow option A or option B below according to your view:
   • Option A (Category view): Under System and Security, select Review your computer's status.
   • Option B (Large/small icons view): Select Action Center.
4. Click the Security panel to expand it.
5. Your default antivirus application appears under Virus protection.

1. Click the Windows Start button, and select Control Panel.
2. Follow option A or option B below according to your view:
   • Option A (Category view): Under System and Security, select Review your computer's status.
   • Option B (Large/small icons view): Select Action Center.
3. Click the Security panel to expand it.
4. Your default antivirus application appears under Virus protection.

You may need to disable your default antivirus before installing Avast software on your PC.