When you sign-in to Windows 8, it displays your full name just adjacent to your account picture on the Start Screen. If the name is the same as the one you are using for Microsoft Account in Windows 8, chances of changing the name become less, as the name synchronizes with the settings for your account on microsoft.com. But you can, if you wish change your stored Microsoft account in Windows 8 Store. It is not as difficult as the former, and you can easily do the needful.
Change Microsoft account stored in Windows 8 Store
To change your Microsoft Account, KB2833703 recommends you do the following. Firstly, go to the Start Screen of Windows 8, search for the ‘Store’ tile and click the tile.
Next, Then hover the mouse cursor in the lower-left corner of your computer screen to open the Charms and click on Settings.
Under Settings, choose your Account.
Then, under Your Account, click the option that says ‘Change user’.
Finally, enter the user name and password that you want to change, and save the changes. Next time, you login you will be able to log into the Store with the new account!
Hope this helps!
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