Release the key after Startup Manager appears.

If your USB thumb drive, USB external disk or flash storage contains a usable operating system or a macOS installer, you can select it at boot time using macOS’ built-in feature called Startup Manager, which can be invoked via a simple keystroke.Ģ) Press and hold the Option key immediately upon hearing the startup chime. How to start up your Mac from an external USB storage device Tip: You can easily burn a bootable image of macOS to a DVD using Disk Utility. You can also press the left mouse button on a wired mouse during startup to open the disc tray. Your Mac should start up from the macOS installer CD/DVD media. How to start up your Mac from a bootable CD/DVDġ) Firstly, turn on your Mac, or restart it if it’s already on by choosing Restart in the Apple menu.Ģ) Secondly, press and hold the C key on your keyboard immediately upon hearing the startup chime.

Bootable optical media (CD or DVD) on Macs equipped with Apple’s Super Drive or a USB thumb drive formatted with a GUID partition type and containing a macOS installer or a usable operating system.Īpple advises against booting from external storage containing a version of macOS earlier than the one your Mac shipped with.

everything ran nice and easy.Starting up your Mac from an external disk requires the following: Then plug one of the PT cards (can't not recall which one) Win loaded and crashed at 'installing software PCI to PCI Bridge). with the uad2 there everything is fine so the PCI slot is fine and operating. Made couple of changes - switching PT cards/slots and finaly I plug my uad2 card there. So i found out there's something wrong with either the Core card or the PCI slot. After installing Win I started plugin my hardware one by one to see which one is in conflict. So after I unplugged all my additional hardware (PT Accel 2 cards, iLok and UAD-2) everything when smooth. Tried 3 different Win 7 versions same thing. The program crashed at install at the point 'completing installation' and just freezes. My HDD got f**ked up so I bought a new one and decided to run Win7圆4.

Last night I had the wierdest problem installing Win 7 and PT HD

Install windows 7 on imac g5