What will happen if I delete my Microsoft account?

You can’t use your Microsoft account to access any of the products and services you’ve been using if you close it. It also removes all of the associated services, including your saved OneDrive files. Xbox Live data, as well as your GamerTag

The legal status of your Gmail email address is confirmed. Microsoft does not have authority over Gmail, as you said. The system will erase the Microsoft account established in the background using the Gmail email address created in the background.

Closing a Microsoft account prevents you from using it to access the Microsoft products and services on which you’ve been relying. It also destroys all of the services linked with it, including your Outlook.com, Hotmail, Live, and MSN email accounts. OneDrive file storage is provided through this service as well.