Windows Defender not fully functioning.

[akositunying]

I just installed a Windows10 Pro 64bit on my harddrive without product key (via media creation tool). As checking my pre-installed apps, I noticed that my Windows Defender is not fully functioning. Is it because I haven't entered my product key?

It only shows on the Windows Defender's screen is "Your Device Is Being Protected" with three lines on the upper left corner, the home icon, and the settings icon on the bottom left.

 

[Ralston18]

Type "Windows Defender Security Center" into the "Type here to search" field.

Should get you into the configuration settings.