Two ways. Either download Tweak UI. In it you can setup so that the computer
always starts with a specific account and password (so that you do not have
to write it in)
The other way is to change the way you log on. Go to the Control Panel/User
Accounts, select "Change the way users log on or off", and then enable the
checkbox "Use the Welcome Screen"
Notice that in some cases, installed components and programs may prevent the
Welcome Sceen option from being enabled. If so, either uninstall that
program/component, or use the TweakUI method.