crwdns2894164:0crwdne2894164:0
crwdns2894186:0crwdne2894186:0
crwdns2875948:02crwdne2875948:0 —

crwdns2873951:0crwdnd2873951:0crwdnd2873951:0crwdnd2873951:0crwdne2873951:0

crwdns2869020:0crwdne2869020:0:

crwdns2858926:0crwdne2858926:0

Once the computer is completely shut down, press the power button, then immediately press and hold the key combination cmd + option + R.

crwdns2859191:0crwdnd2859191:0crwdnd2859191:0crwdnd2859191:0crwdne2859191:0