Having a password protected login for Windows is essential to keep your data safe in a more public space. If you're just using your computer in your own home, however, it can be more of a nuisance. By default, Windows prompts you to create a password, but there are ways to get around this.
One way to avoid entering a password to get into your computer is to change the PC's power settings. You can do this in the Windows Control Panel by increasing the time it takes for the PC to automatically go to sleep. You can even set it to never go to sleep, which will simply keep you logged into your account. You will still have to enter a password if you either put the computer to sleep or restart it. A quick way to get into the Control Panel is to press the Windows key and type "users."
If you'd like to get rid of the login screen altogether, there is a more secret option. To do this, hold down the Windows key and press the R key. Then type "control userpasswords2" and it will take you into a hidden Control Panel that will allow you to disable the login altogether.