After clean install, "Users/Media" folder named incorrectly

I had a problem before the holidays which this group identified correctly as long-term corruption and I solved the issue with a clean 10 install. All now great except...I had to go into the Users/Media path to replace a saved Chrome history file and noticed that the Users/Media folder had been named using the first five letters of my forename. Everything seems to be working ok but ignoring the gibberish name, rather than continue with something which may go strange in the future I wonder is it possible to change the name back to "Media"? I imagine there are any number of links to the OS so simply renaming would not work...would this be a regedit thing?
thanks in advance for any suggestions.

You have to create a local account first to get the exact user name that you want. Then convert the local account to a Microsoft account login. So, what you will have to do is create a local account with the username Media. Change it to an Administrator account. Log in to Media locally. Delete your first account you created. Change the Media account to the Microsoft account login.

Option Three here:
https://www.tenforums.com/tutorials/...a.html#option3

https://www.tenforums.com/tutorials/...dows-10-a.html

https://www.tenforums.com/tutorials/...dows-10-a.html

Thank you NavyLCDR for such a comprehensive reply. I hadn't realised the 'Media' name I was expecting was the first five characters of the account login name. In previous installs on earlier versions [XP, 7 etc] I always used the name Media for the PC while 10 requires the Msoft live account. The previous 10 that went haywire was the upgrade from 7 which hadn't required the Msoft live so was still called Media. With the clean 10 build the 'Media' name had gone so I now know the path isn't corrupted and I guess I'll leave the rather stupid looking path. Thanks for your help. Much appreciated.

Windows 10 does not require a Microsoft account. Not now, never has.