start up commands boot commands

Hello! I was working on my laptop and suddenly a kernel panic (that's how it's called on forums) happened (with those chinese characters that demand an instant restart) and then my mac restarted. Then it took too long (around 10 min) for booting (showing apple icon and the loading bar properly)...

Hi all, I have a 2012 Mac Pro which I bought without any hard drive in it. I thought this would be no issue, just boot from a USB installer and install onto a new drive. However, no boot commands seem to work at all. Option doesn't bring up boot options, CMD, Option, P & R does nothing. I have...

After sweating during several days and finally with the phone assistance of a very kind Apple supporter who spent over an hour on the phone to help me. I finally managed to reinstall Bootcamp Windows 10 in my MacPro End 2013. :) For unknown reasons it had gotten corrupt and non working. While I...

Here is the problem: i installed Windows 10 on my Macbook pro mid 2012 and everything worked fine. After the windows installation i tried to reboot the macbook holding Alt/option to select MacOs but the macbook just went directly to Windows 10. Then i turned off and tried booting hold command +...