How to Turn On or Off Windows 10 Limited Periodic Scanning with Windows Defender
InformationStarting with Windows 10 Insider Preview Build 14352, a new security setting called Limited Periodic Scanning will be included.
Limited Periodic Scanning is a new security setting you can choose to turn on if you use an antivirus program other than Windows Defender. This setting can provide an additional line of defense in scanning and detecting malware on your device. Each month Microsoft’s Malicious Software Removal Tool detects malware on 1 to 2 million devices, even those running other antivirus software. The Limited Periodic Scanning setting can be turned on for unmanaged devices.
When turned on, Windows 10 will use the Windows Defender scanning engine to periodically scan your PC for threats and remediate them. These periodic scans will utilize Automatic Maintenance—to ensure the system chooses optimal times based on minimal impact to the user, PC performance, and energy efficiency—or customers can schedule these scans. Limited Periodic Scanning is intended to offer an additional line of defense to your existing antivirus program’s real-time protection.
To read more about Limited Periodic Scanning, see:
Limited Periodic Scanning in Windows 10 to Provide Additional Malware Protection | Microsoft Malware Protection Center
This tutorial will show you how to turn on or off Limited Periodic Scanning if you use an antivirus program other than Windows Defender in Windows 10.
You must be signed in as an administrator to be able to turn on or off Limited Periodic Scanning.
NoteWhen Windows 10 Limited Periodic Scanning is turned ON, and even if you are NOT using Windows Defender for your real-time protection, the Windows Defender user interface and History tab will allow you to view any additional threats that have been detected.
When a threat is found, Windows Defender will notify you with a Windows 10 notification. In most cases, Windows Defender will also automatically take action on the threat. Clicking on the notification will open Windows Defender where you can further review the threat that was found and the action that was automatically taken.
Clicking the notification will take you to the Windows Defender main user interface, where additional actions (if required) can be taken and applied.
At this time, Windows 10 Limited Periodic Scanning is intended for consumers. Microsoft is evaluating this feature for commercial customers, but Limited Periodic Scanning only applies to unmanaged devices for the Windows 10 Anniversary Update.
1. Open Settings, and click/tap on the Update & security icon.
2. Click/tap on Windows Defender on the left side, and turn On or Off (default) Limited Periodic Scanning on the right side for what you want. (see screenshot below)
3. You can now close Settings if you like.
- How to Turn On or Off Windows Defender in Windows 10
- How to Turn On or Off Windows Defender Real-time Protection in Windows 10
- How to Use Malicious Software Removal Tool in Windows