Windows
Download Windows Defender

Windows Defender: Real-Time Protection

How to use Real-Time Protection in Windows Defender

To help prevent spyware and other unwanted software from infecting your computer, turn on Windows Defender Real-Time Protection and select all Real-Time Protection options.

Note: To complete these steps, you must be logged on as Administrator or be a member of the Administrators group.

To turn on Real-Time Protection

  1. Open Windows Defender (click Start, type Windows Defender in the search field, and press Enter).

  2. Click Tools, and then click General Settings.

  3. Under Real-Time Protection options, select the Use Real-Time Protection (recommended) check box.

  4. Select the options that you want. To help protect your privacy and your computer, Microsoft recommends that you select all Real-Time Protection options.

  5. Under Choose when Windows Defender should notify you, select the options you want, and then click Save.

Windows Defender

View the demo
View the demo
Learn about Defender features.
Resources for Software Vendors
Resources for Software Vendors
Understand how Microsoft objectively rates software and how to communicate your questions to us.
Latest updates
Latest updates
Get the latest anti-spyware definitions for Defender.
Getting started
Getting started
Using Defender is quick and easy.
Microsoft
© 2009 Microsoft