Is your MacBook refusing to boot? Here's how to troubleshoot a MacBook that's not starting up, including what to test for and what to do to fix the problems.

Senior writer Lex Friedman's friend Julian had a MacBook Pro that refused to start up. Here are the steps they took in their attempts to get the Mac working again.

When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. Here's how to rescue your Mac when it won't boot ...

Restart your Mac normally, then test for the issue again. My Mac Issue Hasn't Gone Away - What Now? If the issue returns after a normal boot, a startup item is the likely culprit.

When your Mac won’t power up or boot up, there could be a number of reasons why. We’ll take you through the steps to troubleshoot this problem so you can get up and running as soon as possible.

I have a Core 2 Duo black MacBook that I purchased in December '07, and it won't boot off my USB stick. To make the stick, I split it into two GUID ...

Unfortunately I'm not well versed in my Apple-fu. A friend has a 13" Macbook and it won't boot, there's really no sign of life on it. We've tried holding down the power button for a while and no ...

When it comes to changing your Mac's startup disk, you can do so for the next startup only or for every startup going forward. Here we'll break down the process for both scenarios.

Re-install the Mac OS X 10.4.3 combo updater on the problematic drive. Re-attempt booting from the problematic volume (hold down the option key at startup to select the desired drive) ...

Re-apply the Mac OS X combo updaer (PowerPC or Intel). Reader reports MacFixIt reader Mario Camou writes: "I just updated to 10.4.8 on my 17" MacBook Pro. I have it set up for verbose boot.