i had recently changed the password and i forgot it i have tried the F8 thing and it still ask for password i cant download any thing because it ask for a password too i don't have a a reset disk or any thing like that please help me i have also tried http://social.technet.microsoft.com/Forums/en-US/itprovistasecurity/thread/7ff77980-84cf-4a33-9791-81a1159a3a34every thing suggested here only not thing things that asked to download or for reset disk

Hannah baby girl, Did you try the third option from this link? You will need the windows 7 install disk to do it.http://www.jimmah.com/vista/Administration/locked_out_of_admin.aspx

I overlooked that you are using Vista. We are at the windows 7 forum right now but try the method in the above post and substitue your vista disk for the windows 7 disk.Further questionscan be better answered at theVista forum:http://social.technet.microsoft.com/Forums/en-US/category/windowsvistaitpro