If your Mac is already off, press the “Power” {“smallUrl”:“https://www. wikihow. com/images/5/5d/Windowspower. png”,“bigUrl”:"/images/thumb/5/5d/Windowspower. png/30px-Windowspower. png",“smallWidth”:460,“smallHeight”:460,“bigWidth”:30,“bigHeight”:30,“licensing”:"<div class="mw-parser-output">

I edited this screenshot of a Windows icon. \n</p>

License: <a target="_blank" rel="nofollow noreferrer noopener" class="external text" href="http://en. wikipedia. org/wiki/Public_domain">Public Domain</a>
\n</p></div>"} key or button to begin starting up your Mac.

If your Mac is already off, press the “Power” {“smallUrl”:“https://www. wikihow. com/images/5/5d/Windowspower. png”,“bigUrl”:"/images/thumb/5/5d/Windowspower. png/30px-Windowspower. png",“smallWidth”:460,“smallHeight”:460,“bigWidth”:30,“bigHeight”:30,“licensing”:"<div class="mw-parser-output">

I edited this screenshot of a Windows icon. \n</p>

License: <a target="_blank" rel="nofollow noreferrer noopener" class="external text" href="http://en. wikipedia. org/wiki/Public_domain">Public Domain</a>
\n</p></div>"} key or button to begin starting up your Mac.

If your Mac is already off, press the “Power” {“smallUrl”:“https://www. wikihow. com/images/5/5d/Windowspower. png”,“bigUrl”:"/images/thumb/5/5d/Windowspower. png/30px-Windowspower. png",“smallWidth”:460,“smallHeight”:460,“bigWidth”:30,“bigHeight”:30,“licensing”:"<div class="mw-parser-output">

I edited this screenshot of a Windows icon. \n</p>

License: <a target="_blank" rel="nofollow noreferrer noopener" class="external text" href="http://en. wikipedia. org/wiki/Public_domain">Public Domain</a>
\n</p></div>"} key or button to begin starting up your Mac.

If you’re using a Bluetooth keyboard, make sure you press ⇧ Shift after the boot-up sound (or directly after the Apple logo appears). [1] X Research source

If your Mac has FileVault enabled, you’ll first need to log in to unlock your Mac’s startup disk. [2] X Research source

Unfortunately, if the problem is still present, your Mac’s base hardware or software is causing the issue.

You can also remove problematic applications, such as third-party antivirus suites or stubborn programs, in Safe Mode.