How do I turn on Windows Defender antivirus?

To enable Windows Defender

1. Click the windows logo.
2. Scroll down and click Windows Security to open the application.
3. On the Windows Security screen, check if any antivirus program has been installed and running in your computer.
4. Click on Virus & threat protection as shown.
5. Next, select Virus & threat protection icon.

How to launch Windows Defender in Windows 8?

How to Launch Windows Defender Open the Start screen and type “defender.” The Search charm will open to recieve your input. Click or tap “Windows Defender” from the results window to launch the application.

How do I run Microsoft Defender Offline on my computer?

In an up-to-date version of Windows 10: Under Current threats, select Scan options. In previous versions of Windows: Under Threat history, select Run a new advanced scan. Select Microsoft Defender Offline scan, and then select Scan now. You’ll be prompted that you’re about to be signed out of Windows. After you are, your PC should restart.

Where do I find Microsoft Defender on my computer?

Select Start , and then select Settings > Update & Security > Windows Security > Virus & threat protection . On the Virus & threat protection screen, do one of the following: In an up-to-date version of Windows 10: Under Current threats, select Scan options. In previous versions of Windows: Under Threat history, select Run a new advanced scan.

Why do I need to install Windows Defender update?

Important! Selecting a language below will dynamically change the complete page content to that language. Install this update to improve protection functionality in Windows Defender. Install this update to improve protection functionality in Windows Defender. See the associated Microsoft Knowledge Base article for more information.