Toshiba Satellite A100-S8111TD Notebook "sed delete" Questions

...my smaller ones from going into my account and view private files of mine. when I returned, I reakised that I forgot the password and since the other users are all on limited accounts, There's ...

...put the xp cd in the cd drive restart the computer when boot up it will read the disk and it will seds to boot up with cd press any key so press enter than it will inicialized the xp instalation ...