Hello! My name is Mustafa,
I am hopeful that I will be able to help you find a satisfactory solution.
Your CPU is not supported for windows 11.
please refer to this article from Microsoft on CPUs that support windows 11.
So unfortunately you can't upgrade to windows 11.
Please let me know if this doesn't work or if you need further assistance.
Note: This is a user-to-user support forum and I am a fellow user.
Warm Regards,
Mustafa