I have medium brown hair with partial highlights and want to dye all of my hair blonde but, nothing works.?

How can I dye all me hair blonde. Everytime I buy blonde dye at walmart it lightens my highlights but not my roots. How can I make my hair all one color-blonde?I have medium brown hair with partial highlights and want to dye all of my hair blonde but, nothing works.?
Go to the salon-it's the only way you'll achieve the color you want. I have medium brown hair with partial highlights and want to dye all of my hair blonde but, nothing works.?
well i am a hair dresser so i know i can help u with this one......if your hair is colored med brown (and not virgin) there is no way it is going to lift with box color..... color doesn't lift color so u would have to get it corrected. as for the blonde streaks that u already have... they are already light so its not hard to change those. u would need to go to a salon and have them strip out the artificial color(which won't affect the highlites) because that is the only way u will be able to color it blonde. dont worrie, if they use good products (and not straight bleach) it wont do damage to your hair!
First Wal-Mart is a no. You need to go to a hairdresser, its kinda spendy though. You could probably touch up your self. It might be cool to do, red, brown and blond. The red will take better and it can blend with the blond easier and the roots wont be so noticeable.
go to a hairdresser, they do that sorta stuff all the time.
bleach your hair at the saloon.. bleaching works better!