My OS hard drive recently failed and it failed to boot. I have installed windows 8.1 on a new drive. Then in my attempt to recover the data from my old hard drive, I hooked it up to an empty sata port, tried to boot Windows but couldn't. It didn't go past new windows boot screen. Then I tried to boot from a Ubuntu LiveCD but that too didn't boot when I had the old hard drive connected. Please suggest me ways hows to proceed.