Reformatting the hard drive will remove all data on the memory unit, once that is complete you can run the "Initial setup" for the console found under the System Settings. Just be aware, if you wish to reformat the hard drive you will need the console's
serial number and this can be found under "System Info", via the System Settings and then console settings.
This is the only way I know how to restore to factory defaults on the original xbox,
but if you do not want to lose everything wait for another reply as in doing this saves, profiles, (anything on your HDD) will be wiped which is not good.
Did this solve your problem?
Sorry this didn't help.
Great! Thanks for marking this as the answer.
How satisfied are you with this reply?
Thanks for your feedback, it helps us improve the site.