Are you saying you have created a new Microsoft account using this email address @ussiebb.com.au?
If so, try this:
If you still know the Microsoft account's old account's password, you can do this:
Go to Settings > Accounts > Your info
Click on Sign in with local user instead. follow the steps and finish the rest.
(If you don't see the "sign in with a local account instead option, click on "Stop signing into Microsoft apps automatically" first, then relaunch this page. )
Restart the computer (Do Not skip)
Go to Settings > Accounts > Your info
Click on Sign in with Microsoft account instead. follow the steps and finish the rest. Sign into the new account this time.
Restart the computer (Do Not skip)
If you don't know the password for the old account, you have to do this instead.
- Type netplwiz in the search on the taskbar and hit enter. When launched, click on "Add". On the next window, sign into the new account.
- When the above user is created, back to the main netplwiz page, double click on this new user, go to the Group Membership tab, make it administrator. Save the change.
- Restart the computer. Sign into the new user you created in Step 1.
- If you have data at the old username folder, go to C:\users\old username folder, find them and copy them into C:\users\new username folder.
- Type sysdm.cpl in the search on the taskbar and hit enter, go to Advanced tab, click on the "Settings" button at the User Profile section. Then delete the old user profile.
- Launch netplwiz again, delete the old user from there.