Like many people, we only have one user account for our computers.
However, when we turn on our computers and walk away to get a drink, we expect it to be loaded and ready to serve our every little whim.
Its a shame though that by default Windows XP will wait at the login screen, even if there is one user with no password protection, for us to click to proceed.
Why? Just load damn you!
Luckily, theres a way around it.
1. Go to "Start" > "Run" and type "control userpasswords2".
2. Untick "Users must enter a username and password to use this computer".
3. Click "OK".
4. Enter the details of the account you wish to automatically log in as.
[ Source ]