You can use the Settings app to add a user account.
In the Settings app on your Windows device, select Accounts > Other users or use the following shortcut:
Under Add other user , select Add account
Enter the account information for this person to sign in:
If the person you’re adding already has a Microsoft account, enter the email address
If the person you’re adding doesn’t have a Microsoft account, you can use their email address to create one. Enter the email address that person uses most frequently and select Sign up for a new email address
If you select the option “I don’t have this person’s sign-in information,” you can sign up for a new email address and create a new Microsoft account. If you want to create a local account, select the option Add a user without a Microsoft account