Register As An App Developer
You can create an inividual or company developer account. There is a one time registration charge.
https://developer.microsoft.com/en-us/store/register
Windows Developer Account Management
https://developer.microsoft.com/en-us/dashboard/Account/Management
Feel free to comment if you can add help to this page or point out issues and solutions you have found. I do not provide support on this site, if you need help with a problem head over to stack overflow.