With this tip you can make Windows boot up to feel a little faster.
If you wait couple minutes after turning your computer on to log in Windows and after log in you wait still some more minutes before Windows is ready to go, this tip is for you and it will save you minutes every day. After booting up to login screen Windows will login automatically and lock the desktop right after that.
So, you boot up your computer and next you unlock the desktop and can start surfing the web right away. Note that for security reasons, which are saving password as plaintext into Windows registry and desktop being unlock for a little moment during the booting up, this really probably suitable only for home computer with singel user.