Microsoft allows a lot of ways to manage your Windows 10 computer. You can switch between these two users like you normally do from the Start menu or reboot your computer. What you are doing is creating a new user account on your computer with this new Microsoft account. Just like when you added your first Microsoft account. The setup instructions will include settings like 2FA and Windows Hello. You will now follow on-screen instructions and enter the new Microsoft account ID and password to add that account to your computer. Step 1: Open your Microsoft Account manage area and under Account aliases where you can add a new email ID or number. You can also replace old account details with a new one or make the new ID 'primary'. You can add up to 10 email IDs and numbers to the same account as 'alias' without creating a new account for each one. No need to create a new account just for that. Many users wanted to change their Microsoft account's sign-in email and phone number. Add Email ID and Number to Same Microsoft Account Let's find out how you can change Microsoft account on Windows 10 computer and what you need to keep in mind. You want to use two OneDrive accounts to maximize free storage space it offers.You are an advanced user, enthusiast, or dev who loves tinkering around.You lead a dual life and have multiple jobs requiring you to sign in to different accounts.You bought a second-hand computer and the last owner failed/forgot to format it.

There could be other reasons to update or change your Microsoft account details on your computer: While a Microsoft account is not necessary to use Windows 10 computer, it is recommended nonetheless.

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