每一部電腦都安裝一個密碼,如果我安裝一個密碼,之後我忘記密碼,那麼我怎樣做?

the basic method is restore the computer.
more diffcult method is use some cracker prograrm,i have use one it can crack all my password in my computer.but later you must be repair your computer then restore

按忘記密碼