Step 1: From the Start screen, swipe in from the right edge of the screen, and tap Settings.
Step 2: Tap or click Change PC settings.
Step 3: Tap or click Accounts, and tap or click Other accounts.
Step 4: Tap or click Add an account,
Step 5: If the new account will sign in using an existing Microsoft account email address, enter it, and tap or click Next.
Step 6: Follow the prompts to set up the new account.