This name can be changed through the Windows settings.

The user account name is the name of the user account that is displayed on the sign-in screen and in various places throughout the operating system. Excel for Microsoft 365 Word for Microsoft 365 Outlook for Microsoft 365 PowerPoint for Microsoft 365 Access for Microsoft 365 Project Online Desktop Client Publisher for Microsoft 365 Visio Plan 2 Excel 2021 Word 2021 Outlook 2021 PowerPoint 2021 Access 2021 Project Professional 2021 Project Standard 2021 Publisher 2021 Visio Professional 2021 Visio Standard 2021 Excel 2019 Word 2019 Outlook 2019 PowerPoint 2019 Access 2019 Project Professional 2019 Project Standard 2019 Publisher 2019 Visio Professional 2019 Visio Standard 2019 Excel 2016 Word 2016 Outlook 2016 PowerPoint 2016 Access 2016 OneNote 2016 Project Professional 2016 Project Standard 2016 Publisher 2016 Visio Professional 2016 Visio Standard 2016 Excel 2013 Word 2013 Outlook 2013 PowerPoint 2013 Access 2013 OneNote 2013 Project Professional 2013 Project Standard 2013 Publisher 2013 Visio Professional 2013 Visio 2013 Excel 2010 Word 2010 Outlook 2010 PowerPoint 2010 Access 2010 OneNote 2010 Project 2010 Project Standard 2010 Publisher 2010 Visio 2010 Visio Standard 2010 Excel 2007 Word 2007 Outlook 2007 PowerPoint 2007 Access 2007 OneNote 2007 Project Standard 2007 Publisher 2007 Visio 2007 Visio Standard 2007 Excel Starter 2010 InfoPath 2010 InfoPath 2013 InfoPath Edit Mode 2007 InfoPath Edit Mode 2010 Word Starter 2010 More.In Windows, the terms 'User account name' and 'Username' are often used interchangeably, but they actually refer to different things.

Change name in microsoft account