Why does ScanDBX tell me I have insufficient disk space to run the program?

ScanDBX backs up any component of your Outlook Express installation before doing any scan, so that you can restore your computer to its original state. To do this, it requires enough disk space to save a copy of your mail files, registry settings, and other Outlook Express configuration information. If you do not have sufficient space to back up this information, ScanDBX will not run, to protect you from data loss.