help regarding win xp User account protections

Hi….
Is there a secure way to protect user account win xp sp 2 as one of my friend easily opened my locked account wid his pendrive ….he just inserted his usb pendrive & start my machine & its unlocked.
there were a software installed on his pendrive & he didnt told me but now i want to know is there a way to lock my user account in windows xp sp2 & it can not be unlocked easily….or never. Is it possible?
Please help me !!!
Thanks
Answer #1
Go into the bios…Disable booting from the CD/USB…Or just put the hard drive as the first boot device…Then set a password in the bios…
Answer #2
Thanks for replying……
Alrite let me check it out….
And can u tell me more abt that pendrive software ???? i dont know its name.
Answer #3
here is how it’s easy done. or make bios pass as says
http://www.passwordunlocker.com/
http://www.kellys-korner-xp.com/win_xp_passwords.htm
http://pogostick.net/~pnh/ntpasswd/
or get one of these
http://www.giga-byte.com.au/FileList/WebPage/mb_080818_ultratpm/tech_080818_ultratpm.htm
Answer #4
Thanks a million & for helping me…..
Take Care