Occasionally scan your PC with Windows Defender, even if you have another antivirus

If you are concerned about your security, you probably use a good internet security suite, from a third-party company, that specializes in creating antiviruses, firewalls and other anti-malware solutions. Although many security suites are better equipped to protect you against malware than Windows Defender , some are not. Because of this fact, but also because two shirts keep you warmer than one, Microsoft decided to offer Windows 10 users a new security setting called Limited Periodic Scanning. This feature lets you run occasional antivirus scans with Windows Defender even if you already have another antivirus installed on your PC, without conflicting with third-party security products, which happened in the past. Obviously, this is a welcome additional layer of security, so you’ll want to enable it and use it. In the end, it’s great to get a second opinion from time to time and find out whether your main antivirus is efficiently protecting you from malware. Read on to see how to enable and use this feature in Windows 10:

NOTE: The features shared in this article apply only to Windows 10 with Anniversary Update or to Windows 10 Insider Preview Build 14367 or newer. Windows 10 Anniversary Update will be available for free, to all Windows 10 users, as of August 2, 2016.

How to enable Limited Periodic Scanning in Windows Defender for Windows 10

Start by opening the Settings app. A quick way to do it is to click or tap on its icon from the Start Menu.

In the Setting app, click or tap Update & security.

Next, in the column on the left side of the window, click or tap Windows Defender.

On the right part of the window, you will see a settings section called Limited Periodic Scanning , which tells you that “Windows Defender is periodically scanning your PC for threats, and will notify you if any threats are found”.

Note that the Limited Periodic Scanning feature is turned Off by default.

Click or tap the switch to turn Limited Periodic Scanning On.

And that’s all! If, by any chance, your main antivirus doesn’t detect an infected file, Windows Defender might do so while running these occasional scans. When that happens, you can open Windows Defender and go to its History tab to check the actions it took.


Enabling the Limited Periodic Scanning option of Windows Defender is easy and it’s something you should do, as it’s good to have an additional layer of security on top of your main antimalware solution. Have you enabled this feature? Do you think it’s useful? Share your opinions with us in the comments below.