Hello. Recently my computer experienced a Windows OS error which caused my hard drive to become inoperable and unreadable even by external devices. I've since purchased a new hard drive and am ready to install it into my computer. This computer was store-bought and originally came with a copy of Windows 7 Home Premium 64-bit along with a sticker key on the case. It did not come with a recovery disk. My question is am I able to obtain another complete copy of Windows 7 either through the computer manufacturer or through Microsoft either free or at some cost or am I stuck purchasing another key for Windows 7? I'd like to add that the computer is no longer under warranty and I did not back up my old hard drive. Is it of any help to also obtain a Windows 7 Recovery Disk from the manufacturer?