Mac noob here. So i just recenlty bought a secondhand Macbook Pro from a friend who's not very tech-savvy. I had the keyboard replaced (as some keys were not working) and it worked like normal. A few days ago, I decided to wipe the Mac's hard drive clean to give it the factory state feel. I Googled the instructions on how to reformat the hard drive, gave it a shot, and boom-- Mac's not booting up anymore. I tried doing the Internet Recovery for a couple of times (tried downloading the OS over the Internet, which is honestly painstakingly slow) but somehow failed-- like it will quit and go back to the OSX Utilities screen. Can someone help me with this issue? If my memory serves me right, specs is as follows: 13 in, 4 GB RAM, Intel i5, 500+ GB HD. TIA!!!