While trying to log onto a computer on my home network through remote desktop, I got a rather strange warning which I couldn't remember how to fix.

I know it had to do with the fact that I had no password for that account. By default, for security reasons, Windows XP does not allow users to log onto a computer remotely if there is no password set.

Luckily, there was a setting somewhere to change it.

1. Click on "Start", "Run" then "gpedit.msc"
2. Find your way through "Computer Configuration" » "Windows Settings" » "Security Settings" » "Local Policies" » "Security Options"
3. Double click on "Accounts: Limit local account use of blank passwords to console login only"
4. Select the "Disabled" radio button next and save the settings.

Try logging in again from a remote computer and it should work immediately, without the need for setting password.