The computer is trying to tell you that it cannot locate the files it requires to start up. These files are NOT on any floppy disk your son has inserted into the floppy drive. Ensure that there is no disk in either the computers' floppy drive (otherwise known as its A: drive), or the cd drive(also known as the dvd or usually D: drive) Switch on the computer. If you still get the error message the problem lies with a corrupted or faulty hard disk. Corrupted files MAY be replaced, normally by re-building the operating system (if you have the windows build disk or a compaq recovery disk), however you should first check the disk for physical errors. A faulty hard disk will require replacement and then the operating system restoring. Both of these jobs are best left for someone with enough experience to complete the task. Ask around if there is anyone able to perform this task for you at a reasonable cost. Any personal data (letters, photos etc) on the hard disk MAY be recoverable to another system, but this again is a job for someone with the experience to complete the task .....Ho-hum....who'd have a computer!! Mike