How to Upgrade Windows Defender

Developed by Microsoft, Windows Defender is designed to protect Windows-based computers against spyware and other unwanted software. Regular updates to the program ensure that systems are guarded from the latest threats. Windows Defender comes pre-installed and enabled by default in both the Windows Vista and Windows 7 operating systems, but older computers may be running a beta version of the program or Windows AntiSpyware, its predecessor. If you need to upgrade to the latest edition of Windows Defender, simply download and run the corresponding installer program.

Things You'll Need

• Microsoft Windows XP SP2 or later

Instructions

1. Open a Web browser window and navigate to the Windows Defender download page on the Microsoft website (see Resources).

2. Click the "Download" button. Save the installer program to your desktop when prompted by your browser.

3. Save your work and close all open programs.

4. Double-click the icon of the installer program you downloaded previously. Confirm your choice if prompted by Windows.

5. Click "Next" when the Welcome screen appears.

6. Click "Validate."

7. Select "I accept the terms of the license agreement," and then click "Next."

8. Select your Microsoft SpyNet preference (e.g., "Use recommended settings"), and then click "Next."

9. Select "Complete," and then click "Next."

10. Click "Install" to start the installation process.

11. Check the box labeled "Check for updated definitions and run a quick scan now" if you want Windows Defender to do so. If not, leave the box unchecked. In either case, click "Finish" to complete the installation process.

References

• Microsoft Windows: Windows Defender
• Microsoft Windows: Windows Defender, Upgrade
• Malware Help: Windows Defender Tutorial, Part 1

Resources

• Microsoft Download Center: Windows Defender