
This puts your Mac into “Safe mode“, which temporarily disables all the third-party apps and can be particularly helpful in troubleshooting your Mac. If you want to disable startup apps in Mac temporarily, hold down the Shift button while restarting your Mac and leave it when the Apple logo appears. The icon remained unchanged until the introduction of New World ROM Macs, when it was updated to 8-bit color. A Happy Mac is the normal bootup (startup) icon of an Apple Macintosh computer running older versions of the Mac operating system.It was designed by Susan Kare in the 1980s, drawing inspiration from the design of the Compact Macintosh series and from the Batman character Two-Face. You can also hold option-D to start up from either utility over the internet. Release when you see the startup options window, which includes a gear icon labeled Options. Select Apple Hardware Test or Apple Diagnostics. Start Apple Diagnostics Determine whether you're using a Mac with Apple silicon, then follow the appropriate steps: Apple silicon Turn on your Mac and continue to press and hold the power button as your Mac starts up. Release the D key when you see the choices appear. Start or restart your Mac and immediately press and hold the D key on your keyboard. How to start up from the Apple Hardware Test or Apple Diagnostics.



Depending on the type of Mac you have, the power button might be in back (Mac Mini and some iMacs), front (Mac Pro and some iMacs), or above the keyboard (on laptop models like the MacBook and MacBook Pro). Here’s the simple way to start up your Mac - the way you’ll probably do it 99 percent of the time: Press the power button.
