Windows 10: Windows Defender Update

Hi,

I am new here.
I need some guidance/link.
Windows 10.1 is installed on my pd/desktop. The internet is working through networking and proxy. Microsoft official website is blocked. Due to this, I am unable to update my windows defender (antivirus).

I need to ask whether:
1. Is there anyway to use microsoft website? I have tried through proxy websites, but in vain..
2. Is there any other site, through which I can download the antivirus updates mannually, then can run /update the same?

Regards.

Ijaz.

:)

 

Definition Update for Windows Defender - KB2267602 (Definition 1.213.5087.0) - Error 0x80070643

Yes I understand that Windows Defender will not run if another AV program is installed (in this case Norton 360) but then why does Windows Update keep trying and failing to install Defender updates, when Windows Defender is not running?

I uninstalled Norton 360, ran Windows Defender and downloaded updates for it. Then ran Windows Update and it worked fine, didn't report any Windows Defender updates. I then reinstalled Norton 360 and Windows Defender correctly is turned off.

But again Windows Update tries to install Windows Defender updates and fails: "Definition Update for Windows Defender - KB2267602 (Definition 1.213.5520.0) - Error 0x80070643es. This is a Windows Update bug introduced last month, probably in the cumulative
update for January 2016. Is there any way to fix it?

 

PC not updating

Try update windows defender using windows defender and then go to updates. Or disable windows defender and check for updates , then enable windows defender and update again.

 

Hi it depends who's blocked the website and why.
This is probably blocked too then:
Get the latest definitions - Microsoft Malware Protection Center

Microsoft Windows Defender Definition Update April 12, 2017 Download - TechSpot

I just used a search engine to search for you - you can try searching for
defender definitions.

You may have to try using a different AV, but check if you can access its update server. (If stuck you may be able to get the address via the relevant forum).

You may presumably also not get app updates and related data.