Here’s how to change the type of account you use to sign in to Windows with:
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Select the Start button, select Settings > Accounts > Your info.
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If you’re using a local account that isn't linked to an email address but want to use a Microsoft account, select Sign in with a Microsoft account instead.
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If you’re using a Microsoft account that is linked to an email address but want to use a local account, select Sign in with a local account instead.
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If necessary, enter your password, and then select Next.
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Restart your device. The next time you sign in, the account you switched to will be shown.