Windows 10: Announcing Windows 10 Insider Fast Build 16257 PC + 15237 Mobile

Jeez...my 100GB of Visual Studio makes upgrade from 16251.0 to 16257.1 really slow....stuck at 78% now *Smile

 

Anybody else seeing that Windows Defender Security Center is showing that Virus and Threat Protection is unknown and not showing with a green check mark.

 

Yup.

 

No, I have a green check mark for my virus and threat protection. It is working fine.

 

Yes, the same appears to me, but in "security and maintenance" Defender appears activated.

 

The "InactiveTitlebarColor" reg tweak doesn't seem necessary any longer!

 

Thanks for confirming this.

 

Oups!

 

anyone else got this problem
stuck on working on updates for about an 1hr

 

I can't even count how many times I've fixed that simply by disabling Defender completely and reboot. After that, clicking Retry will continue as if nothing had happened. At least for me it has resolved most of upgrade download issues.

 

I found the solution to the problem of Virus and Threat Protection showing as Unknown and without the green check mark. I use SRP, Software Restriction Policy on all my Windows 10 Pro version machines and when installing Insider builds I turn off the restriction policies but leave the additional rules settings in place. In previous builds this has not been a problem. In 16257 something changed in how Defender works and leaving the additional rules active in SRP borks the Windows Defender Security Center. I went into SRP additional rules and changed all restricted rules to unrestricted, re-booted and now Defender behaves as expected.

 

still stuck at 54% on working on updates
have tried to shut down laptop but power button not working

eventually got it shut down
left it awhile before switching on and it is now restoring back to 16251