Hi, I am Dave, I will help you with this.
Cracked games are wrapped in malware, they usually ask you to disable Defender when you are installing the game so they can install malware on your PC.
Be sure you have now deleted that game from your PC.
Click your Start Button, type regedit and hit Enter to open the Registry Editor.
Click View and make sure 'Address Bar' is turned on.
Paste this into the Address Bar at the top and hit Enter.
HKLM\SOFTWARE\Policies\Microsoft\Windows Defender
Please provide a screenshot of that Registry Editor page.