Windows defender Antivirus not opening in Windows insider preview 15058 PC [Alternative Solution]

Windows Defender the redefined Antivirus from Microsoft, got an UI level update few days 

ago. But if you wish to check out the new antivirus, then you won't get it especially when 

you are in Windows 10 insider preview 15058, the windows 10 creators update preview 

build released for slow ring insiders, few days ago.

If you can't open Windows Defender Antivirus in Windows 10 insider preview 15058, then you are not alone, there are many people experiencing the issue, because of a bug.  

I don't know what caused it, but if you are the one who depends on inbuilt antivirus like 

Windows defender, then don't worry, we have an alternative solution anyway. 

Try the new Windows Defender Security Center application.

It is much powerful than the previous one,..!

You can use it by, searching the Windows defender Security application on start menu and 

selecting the top most result.

Only We people call it a bug ! Who knows, ! 

Maybe Microsoft wants insiders to try the new app, instead of the old Windows Defender

(If the old thing was blocked, then we will be forced to try the new one,isn't it..?)