I think it is possible to switch e-mails, but a but roundabout method. This has screwed up all the computers and how they sync with OneDrive for Business and OneDrive Personal. The emails also affect my log in's to my computers as I use my email address to my OneDrive as my computer log in. MS needs to figure out how to switch the emails or I will be forced to drop my OneDrive This has cost me so much of my time trying to simplify my emails yet they are as screwed up as they were 2 1/2 years ago. Now I am stuck with paying for two Hotmail addresses on a yearly bases and I can't delete the emails because they have linked them to my business account.

To upgrade from Windows 10 home to Windows 10 pro. For some reason my Hotmail account is showing my subscriptions for my businesses ending my OneDrive for Business and all of my purchases Now my Hotmail is not linked at all to my personal OneDrive but is the same as my OneDrive for Business email address. Tech support changed my email address from OneDrive for Business to their default setting email ending in . I started having problems logging into my OneDrive for Business after about 4 months of purchasing the subscription 3 years ago. Then I linked my other accounts as alias's (Hotmail and Gmail) to my primary email address in my OneDrive for Business Online. I purchased my own domain and created my email from my domain to link to my OneDrive for Business Online as my primary address. I had two Hotmail accounts prior to enrolling in the OneDrive for Business Online.

Change microsoft onedrive account