= MacOS boot keys Note that with a Windows keyboard: * Command ⌘ is Win ⊞ * Option ⌥ is Alt | Safe mode | Shift after startup tone and until login screen | | Other boot disk (USB etc.) | Option ⌥ after startup tone and until startup choice appears | | Boot Recovery partition | Command ⌘+R | | Boot Recovery from Internet | Option ⌥+Command ⌘+R | | Verbose | Command ⌘+V | | Apple Diagnostics | D immediately, until test windows | | Reset PRAM/NVRAM | Option ⌥+Command ⌘+P+R, then release the keys after you hear the startup sound for a second time | | Reset SMC | press and hold the left Shift ⇧)+Control ⌃+Option ⌥ keys along with the Power (⎋) button, all at the same time, until the computer turns on. Now release the keys and then turn your Mac back on using the power button. | | Single-user mode | Command ⌘+S (only for High Sierra and before) | (From https://support.apple.com/en-us/HT201255 and https://www.idownloadblog.com/2016/05/23/mac-startup-key-combinations/) {{tag>public mac keyboard}}