Windows 10: Windows 10 Firewall Blocks Defender Update

Hi, all. I just joined minutes ago.

My Windows 10 Firewall blocks my Defender from downloading new definitions (WTF???). It used to work fine.

If I turn off Firewall, it updates no problem. I've created as many inbound and outbound rules as I can think of for all of the .exe files in the Windows Defender folder, but nothing works. Removed them... still doesn't work. It always gives me "Check your internet or network connection and try again" Error code: 0x80070422. So, I can turn off Firewall temporarily to update, but still a PITA.

Does anyone have any ideas?

Thanks.

:)

 

Windows Firewall blocking websites

I have blocked IP addresses, e.g. 255.255.255.255, not URLs, e.g. somewebsite.co m.

As far as unblocking, look at your Windows Firewall rules. Do you see anything that is blocked? If you do, click on the Scope tab and see what is listed there.

 

Best free AV and firewall

Can Windows Firewall block outgoing connections yet? If not, it's one step above useless.

Look into Online Armor for a free firewall.

 

Windows Firewall blocking websites

Windows Firewall can't block specific websites, only port numbers (HTTP uses 80 or 8080). More likely, Windows Firewall is blocking the Windows Update Service or some other critical update application and/or port number that prevents updates from happening.

As twilyth pointed out, this is abnormal and likely caused by some form of malware. If you even found a the offending rule in Windows Firewall, the malware will likely put it back to the way it was within seconds.

Does http://download.microsoft.com open for you? It should redirect a few times and end up at: http://www.microsoft.com/download/en/default.aspx

Have you tried to ping download.microsoft.com? I did it a few times so you should be able to get a response off it.