You can make your Microsoft Windows 8 computer automatically login and bypass the login prompt whenever you start your computer by following this tutorial.
1. Hold the Windows Key and press “R” to bring up the Run dialog box.
2. Type “control userpasswords2” without quotes, then select “OK“.
3. The “User Accounts” box appears. Uncheck the “Users must enter a user name and password to use this computer.” box. Select “OK” when you’re done.
4. You will be prompted to enter the username and password for the account you wish to use automatically when Windows starts. Type the User name and password in both the “Password” and “Confirm Password” fields, then select “OK“.
Now the next time you start your Windows 8 computer, it will automatically login using the selected account.
If you ever want to enable the login prompt again, simply go back to the “User Accounts” screen using step 1 and 2, and check the “Users must enter a user name and password to use this computer.” box.