Dear Ahmad Ali2,
I'm glad to see you in Microsoft Community.
I understand your question, but in order to facilitate a clear advice to you, I would like to ask the following question.
- May I ask if you want to create an account with a domain name like @bing.com ?
If Yes:
Microsoft is not yet open to register accounts with such domain names as @bing.com. But you can submit feedback on this issue (while pressing Win + F -> Describe your problem and submit feedback) and send me a link to the feedback so we can give you a vote to increase the weight of your feedback so that Microsoft will notice the issue in time. Thank you very much for your great contribution to improving Microsoft products. We sincerely appreciate your understanding and support.
If No:
Registering for a Bing account means registering for a Microsoft account, you can click here for detailed steps.
We hope you find this helpful! If you still have questions, please let me know and I will continue to help you.
Thank you for the time and effort you have put into this issue.
Best regards,
Zoee | Microsoft Community Support Specialist