Hello, sudarshan regmi
Welcome to the Microsoft Community.
Thank you very much for your feedback. I have carefully read the information and problem description you provided. You mentioned that you are stuck in the interface of the aptio utility.
I noticed that your problem involves BIOS-related settings. I hope to solve your problem, but because the BIOS settings of each motherboard manufacturer are different, we cannot provide you with professional advice. In order to get more help, I suggest that you can contact the technical support staff of the motherboard manufacturer, who will provide you with more professional tools and methods. Since I don't know your motherboard model, if you can tell me your model, I can give you a link to contact the support staff.
We hope that your problem can be properly solved. Thank you for your understanding.
Best regards
Brian - Microsoft Community Support Specialist