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1. Go to Your Microsoft Account Settings
Visit:
https://account.microsoft.com/
Sign in with your Microsoft account.
2. Open the Your Info Section
At the top menu, select Your info.
3. Manage How You Sign In
Look for Account info or Manage how you sign in to Microsoft.
This page lists all your aliases (email addresses and phone numbers).
4. Remove the Alias
Find the alias you want to delete.
Select Remove next to it.
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Ei auttanut
kun pointti on nimenomaan se että kyseinen alias ei näy tuossa listassa.