The blank password is default for just about every windows OS... Most installs have some sort of program (ie Sysprep) that Prepares your system for use and one of the tasks is to set the default admin password. Zonewalker is right about changing the name of the account too, its a good idea. As a rule of thumb you should always change the password on ANYTHING you get... Even if it is defaulted to something other than being blank... if the default windows password was "BillI$Ritch" it would be the same as being blank everyone will know it. My favorite is with Remote Instalation Services "RIS" and other installs that can have an unattended install saves the password in normal text... and if you want to add the computer to a domain that password is also stored as normal text...