Updating windows defender

So my question is if i turn of my computer will it be affected?Microsoft is conducting an online survey to understand your opinion of the Technet Web site.If you choose to participate, the online survey will be presented to you when you leave the Technet Web site.

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If you encounter problems while trying to install definition updates for Windows Defender, you can download the latest definition update for computers running a 32-bit (x86-based) or 64-bit version of Windows.

Windows Defender is a free program that helps protect your computer against pop-ups, slow performance, and security threats caused by spyware and other unwanted software.

It features Real-Time Protection, a monitoring system that recommends actions against spyware when it's detected and minimizes interruptions and helps you stay productive.

Now with 2 free support incidents for Windows XP and Windows Server 2003.

I tried to update windows denfender but this message keep to appair " This application can't verify updates of virus definitions and spyware definition.

The Windows Defender program in Windows 8 and Windows 10 versions of Windows helps you protect your data from viruses, malware and various other threats.As you likely know, the Defender in Windows 10/8 is nothing but a cut-down version of Microsoft Security Essentials.With default settings, Windows Defender in Windows 10 and Windows 8.1 downloads and installs required updates once a day and doesn’t require manual intervention.That is, Defender automatically checks for update and downloads updates, if available.But if your PC isn’t connected to the internet or for some other reason you want to manually install updates, you can do so by following the given below instructions.This guide is based on our previously published how to manually download Microsoft Security Essentials update guide.

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