Information, Technology & Consulting

Windows Defender with Microsoft Security Essentials for Windows 7


Windows Defender is Microsoft's built-in tool for detecting and removing malware from your computer.

Windows Defender is installed as part of the operating system, and by default, is running on Windows 8 and 10. However, on Windows 7, you'll need to enable and configure it for use.

Follow the steps below to set up Windows Defender on a computer running Windows 7:

  1. Remove any other anti-virus applications that may already be running on your computer. Do this by clicking Start, then Control Panel, then Programs and Features. Click any application you want to uninstall, then click Uninstall. Restart your computer once this is done.
  2. Once other anti-virus programs have been removed, and your computer has been restarted, click Start then Control Panel then Windows Defender.
  3. From the menu bar in the Windows Defender window, click Tools then Options.
  4. In the left hand navigation column, click Administrator.
  5. On the right side of the window click Use this program then click Save.
  6. By default, Windows Defender will scan for viruses at 2:00 am each morning. If your computer will not be on at this time, click Options again, then Automatic Scanning from the left hand navigation column. Set the scan to occur when the computer will typically be on.

In addition to Windows Defender on a Windows 7 computer, you must also download and install Microsoft Security Essentials.  Windows Defender alone does not fully protect a Windows 7 computer.

Follow the steps below to set up Microsoft Security Essentials on a computer running Windows 7:

  1. Download Microsoft Security Essentials.
  2. Run the install and take the default options.


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Last updated: 
Wednesday, December 13, 2017
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If you have questions or need further information, contact your department's IT support office, or contact the IT Service Desk via email at [email protected], via phone at 603-646-2999 or walk in to see them in Baker/Berry 178J.

Information, Technology & Consulting