Mac OS X Lion to el capitan

If you have a good internet connection why don’t you just use internet recovery to install the newest OS. Here’s more on it: How to reinstall macOS

But you may have a deeper issue here! The 13” Unibody MacBook Pro’s tend to have issues with its HD SATA cable. I strongly recommend you replace it if you just upgraded your drive. Here’s the part you’ll need: MacBook Pro 13" Unibody (Mid 2012) Hard Drive Cable. You’ll want to place some electricians tape un the uppercase where the cable crosses over. The rough surface of the aluminum case tends to wear the cable. You also don’t want to over fold the cable you want smooth arcs not sharp corners.