Hello
Thank you for your question and reaching out. I can understand you are having query\issues related to unable to register for the Hardware Developer Program.
- Please try to use different browser using incognito or InPrivate mode and follow steps using this link
https://learn.microsoft.com/en-us/windows-hardware/drivers/dashboard/hardware-program-register
2 . If issue still persist then try to connect to Developer support using below url
https://developer.microsoft.com/windows/support
--If the reply is helpful, please Upvote and Accept as answer--