Windows 7 / Security and Privacy

Understanding Windows Defender

Windows Defender provides two types of protection, both enabled by default:

  • Automatic scanning Windows Defender scans the computer for potentially malicious software on a regular basis. By default, Windows Defender is configured to download updated definitions and then do a quick scan daily at 2 A.M. You can configure scanning frequency on the Windows Defender Options page.
  • Real-time protection Windows Defender constantly monitors computer usage to notify you if potentially unwanted software might be attempting to make changes to your computer.

The sections that follow describe each type of protection in more detail.

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