get a lagit copy of the OS because the key you have is already activated
with microsoft. if it is only activated on the computer you are using you
will need to contact microsoft and tell them that you reformatted your hard
drive
"erkan cakir" <erkan
> wrote in message
news:B90AE6B6-30AC-493D-B702-...
>i bought an acer notebook then i formatted it but i didnt have recovery cd
>so
> i downloaded all drivers. then i used it 1 month the cd i used for format
> was
> copy but i had product key on my notebook. now when i open my notebook it
> wants product key and when i write mine it doesnt accept. what can i do?