Hello, Ajay Patel4
Welcome to the Microsoft community.
Thank you for your feedback.Microsoft Office 365 Premium licenses (such as Microsoft 365 Business Premium or Microsoft 365 E3/E5) are primarily subscription services for activating and managing Office applications and do not include the ability to directly activate Windows 11 Pro. Activation of Windows 11 Pro requires a valid Windows product key or digital license.
Please let me know if my understanding is wrong.
You can purchase a license for Windows 11 pro from the Microsoft Store.
Upgrade Windows Home to Windows Pro - Microsoft Support
I look forward to your feedback.
Best Regards,
Aaron| Microsoft Community Support Specialist