Note: use this trick only to a computer is used exclusively by you.
As private user isn’t comfortable to unlock your windows pc with a windows live account after startup.
Press the windows key and X at same time and open run. You get the following picture. Please insert netplwiz and run.
In the next window you uncheck “Users must enter a user name and password to use this computer”. Click on a user and select “Apply”.
Windows ask you for a user name and password. In this cause you insert your mail address and password of your Windows Live account. Confirm your settings with “ok”.
Please reboot your computer for a test. Your windows should logged on automatically.