I recently purchased a 2TB external hard drive and after plugging it in to my computer an clicking on the encrypted file that came on the hard drive my computer crashed an now it says operating system not found. I went into the system diagnostics to try an back up the files from the internal hard drive to the external hard drive an its says the internal hard drive is not detected. Anyone have any advice on what to do about this? Evrrthing on the computer was working fine until I clicked on the file on the external hard drive now it won't even boot up