microsoft account keeps changing full name

Is there some option somewhere you can click on during the Windows first boot setup process to do this? Something I missed when I selected to sign in with my microsoft account, where I could have provided the local profile directory name of my choice?

Is there somewhere in a place where I can go and set a 'preferable account id' or something that is used when I create an account on a new computer? So then if I go and set this in my web account, THEN do the setup process on the new laptop, it will use whatever I like as the profile directory name? What is the best practice for using a microsoft account in Windows 10, but with a specific local profile directory name? However, I am 100% sure that I was never asked what my local profile directory name should be on the laptop and now I am wondering: what the best way to control this from the very beginning? So the question in short is: Now, I have read up on this (lots of posts on how to rename an account) and found that the best way is to create another admin account, then rename the local account and use the registry editor to change the profile path of the SID for the old account. Therefore I've ran into the debacle that my local profile directory is using the first 5 characters from my last name, which is NOT what I want. I've got a new laptop and did the initial setup using my Microsoft account (i.e.

Microsoft account keeps changing full name