I installed a counterfeited xp on my dell laptop. when i updated through internet. microsoft determined that my os is counterfeited then there are some warning from microsoft that the os is counterfeited always pop up on my task bar. then i decided to reformat using the original one. the problem is why is it that during the process of installation the harddrive of my laptop cannot be detected in the system, which fails the installation process run continously. Is that the microsoft istalled something on my computer which preventing the installation run smoothly? how can i solve this problem?