When the scan has finished (usually takes about 15 minutes), your PC will automatically restart. After you are, your PC should restart. Microsoft Defender Offline will load and perform a quick scan of your PC in the recovery environment. You'll be prompted that you're about to be signed out of Windows. Select Microsoft Defender Offline scan, and then select Scan now. In older versions of Windows 10: Under T hreat history, select Run a new advanced scan. In an up-to-date version of Windows 10 or Windows 11: Under Current threats, select Scan options. On the Virus & threat protection screen, do one of the following: Select Start, and then select Settings > Update & Security > Windows Security > Virus & threat protection. Save any open files and close all apps and programs. You suspect your PC might have malware hiding on it, but your security software doesn’t detect anything. Windows Security (also called Windows Defender Security Center in previous versions of Windows) detects rootkits or other highly persistent malware on your PC and recommends you use Microsoft Defender Offline. To do so, you can open Computer Properties by right-clicking on the computer icon on the desktop and then clicking Properties. Step 1: Check the version (32 or 64-bit) of Windows 10/8.1 installed on your PC.

When should I use Microsoft Defender Offline? Manually download and install Windows Defender updates in Windows 10/8.1. the Microsoft Security Essentials virus and spyware definition update file that is appropriate for your version of Windows: Download the file for a 32-bit.

Microsoft Defender Offline is a powerful offline scanning tool that runs from a trusted environment, without starting your operating system. Describes the steps to manually download the latest virus and spyware definition updates for Microsoft Security Essentials.

Download windows 10 defender offline