I need Mac password help?

Howdy.We have Mac pc OSx EIGHT.6TH.5
We have my own password.The idea simply requires myself for it once i produce alterations post.e- Installing a plan.Such as authorizations.Precisely what do i perform therefore the procedure asks for the password whenever WHEN I get access into your computer

Thank you

http://www.macpassword.com

It really is free of charge.