If after pressing the 'Turn ON' button nothing happens, then follow the instructions on this guide: How to fix: Cannot Start Windows Defender on Windows 10 or Windows 8.Ĥ. In Windows 10 OS press the Turn on now button next to Spyware and unwanted software protection.ģ. In Windows 7, Vista OS you have to press the “ Turn on now” button beside “ Virus Protection” options.Ģ. In “ Action Center” settings, press the “ Turn on now” button to enable “ Windows Defender”. (In Windows 10 OS open the ' Security and Maintenance' item)ģ. From “ Control Panel” menu items, double click to open “ Action Center”. Windows 8: Right click on the bottom left corner and select Control Panel }Ģ. * Attention: Uninstall any other third party antivirus before you continue below.ġb. You can easily enable Windows Defender from your control panel. How to enable Windows Defender Antivirus (Microsoft Security Essentials) in Windows 10, 8, 7 & Vista OS.ġ. In this article I will explain how to enable the default Windows Antivirus Protection ('Windows Defender' in Windows 10 or the 'Microsoft Security Essentials' if you own Windows 7 or Vista).

(FIX: Windows Defender has been turned off and isn't monitoring your computer).

If you don’t like the manufacturer's antivirus, then you can uninstall it from your control panel and then you can enable and use Windows Defender to protect your computer. When you buy a Windows 8 computer today, Microsoft Windows Defender is already bundled inside the new operating system, but for the reason that some OEM manufacturers prefer to install trial versions of antivirus protection programs from other manufacturers like Norton, McAffee, etc. The Windows Defender (previously known as Microsoft Security Essentials) offers more protection to your Windows system from viruses, Trojans, worms and other malicious programs that can harm your computer.

In Windows 10, 8, 8.1 operating systems, Microsoft updated its security protection with the Windows Defender Antivirus program.

How do i turn windows defender off