huge apple logo
When I turn on my MBPretina, i found that there is a huge apple logo on it. It was originally a small one. My log in part also become so big. I mean it is in a low resolution. I used hardware test, it says 4HDD/11/40000000:SATA(0,0)
MacBook Pro (Retina, 15-inch, Early 2013), OS X Yosemite (10.10)