When you start Windows 7 or Windows 8, you are asked to enter your password to be able to log in. This is to protect your Windows PC from unauthorized access. But if you are the only person to use the PC and if you do not wish to be asked for the password everytime, you may get ruid of this process.
Login directly into Windows 7 | 8 without entering password
To be able to log in to Windows 7 without entering any user name or password, type control userpasswords2 in start search and hit Enter to bring up the User Accounts window.
Alternatively, press Win+R to bring up the Run box, type control userpasswords2 and click OK.
Uncheck Users must enter a user name and password to use this computer and click Apply > OK.
On restart, you will henceforth not be asked or prompted to enter your username and password.
Learn how to Disable login after Sleep in Windows 7 | 8.