Windows Defender is configured by default to scan your computer daily for spyware, and to provide real-time protection (scan any program that attempts to install on your computer). To manually scan your computer, follow the steps below.

Depending on the contents of your hard drive, a manual scan could take only a few minutes or much longer.


Click the Start button and type Defender in the Search Programs and Files text box.

A list of search results appears.


Click Windows Defender in the search results.

Windows Defender is launched and the Windows Defender window appears.


Click the Scan button at the top of the window.

Windows Defender begins to scan your computer for spyware.


View the results of the scan.

Close the Windows Defender window when you're done.