Hi, so I'm trying to completely reset my Macbook to when I first bought it (2017), but for some reason it won't completely wipe everything. The reason I know this is because for years I've used it no problem, but I accidentally updated Windows in Boot Camp last month, and it did something to my graphics / display to where I get eye strain when I load Windows and Mac. I've tried clearing the disks completely and reinstalling a fresh copy of macOS Sierra (the OS it came with), but I still get that eye strain. I'm positive there was some setting that Windows update ticked off to cause this, is there any way to factory reset the Mac or am I just screwed?