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The definition updates are exacted automatically and stored in the Windows\Standalone System Sweeper folder. Option 2: Another option is to click the Download button to download and apply the definitions update package automatically. This option is ideal for computers without internet connectivity. Then connect the USB flash drive to the subject computer, click the Browse… button in the MSSS window, and locate the definitions update package. Option 1: You can either download the file mpam-fe.exe (or mpam-fe圆4.exe for 圆4 systems) definitions update package from the Microsoft Security Portal, from PC to a USB flash drive. There are two ways to update the definitions via the MSSS user interface. This can be done by clicking the Check for Updates option from the Help menu. To ensure effective scanning/removal of viruses and malware, make sure you update the definitions. How to Update Microsoft Standalone System Sweeper Definitions Running Microsoft Standalone System Sweeper MSSS runs in Windows XP SP3, Windows Vista, Windows 7, and Windows 8. The bootable media starts the Windows Preinstallation Environment and launches the Microsoft Standalone System Sweeper application to scan and remove viruses and malware. You can download MSSS from here and create bootable media using a CD/DVD or your USB drive. Although this article was written earlier, when the product was in Beta, much of the information can be adapted for the final product, Windows Defender Offline. (Thanks for the heads up, Noel.) There may be some user interface changes in the product since this article was written. Windows Defender Offline is available at this address. Update -J: Standalone System Sweeper Beta has been rebranded to Windows Defender Offline. On older versions of Windows, Microsoft Defender Offline is still called by its old name: Windows Defender Offline. Check out the post “Windows Defender Offline” in Windows 10 Eliminates Complex Malware for more information.
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Update: Microsoft Defender Offline is a built-in feature in Windows 10 - no need to create a Windows Defender Offline bootable media.
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