I'd like to utilize the built in CHKDSK and DEFRAG of Windows XP to automate regular disk maintenance for our users. The problem I run into is assigning a user to the task. Our user's passwords get changed monthly, so I can't really just put in their user name and password for the assigned user, as this would cause them to be prompted for their credentials each time. Is there any way I could set a task to run as system, or some other account who's password isn't changeable? I guess what I'm aiming for is a "Diskkeeper" type of disk maintenance utilizing the built in disk utilities of XP. I'm open to other suggestions as well, and any input is greatly appreciated.