i dont know the password i forgot it a long time ago.... but now i unlock it. and the problem is that it says that the drive is freeze. my hard drive is detected in BIOS setup. and in the windows 7 installer but when i try to install a OS it says. "windows cannot format a partition on disk 0. the error occurred while preparing the partition selected for instalation . error code 0x80070057" and now iam stuck with it....