Mac Pro mid 2012 quad core intel xeon. erased hard drive and installed Sierra. MacOS boot volume not in windows partition. I can get into either Windows or the Mac OS going through system preferences, but when I press the option key at start up, all it shows is the Mac OS. Mac recovery mode not working. Seems the Option key does not work during the boot process. Option key not working for switching in bootcamp. The Mac portion recognizes the windows portion perfectly fine, but not vice versa. reset SMC. reboot and tap caps lock, cap light did not come on until late in boot up. Wait for the chimes and let go. If done correctly, and assuming a firmware password is not set, you should see your internal hard drive show up on the display. Ensure That The Keyboard is Not Faulty. Now, you should see the Apple T2 chip on the right if your Mac supports it. If you DO have a firmware password set then you will be prompted to enter the password before moving on. How to manage OS X boot options with wireless keyboards. Same problem I have the same problem. One problem though, I cannot boot into windows. I just installed Windows with boot camp. Now, I can't even restart to change boot camp. If you have a Bluetooth keyboard, OS X may ignore keystrokes at startup for booting into Safe mode and other optional boot environments. I am still having this same issue. It works when I use my old wired Apple keyboard. Print these boot option keys, because they’re particularly helpful to have […] Option key not working at boot up. I have a Razer Deathstalker as my regular keyboard, but OSX stopped recognizing the option key at startup, so I had to plug in the default mac keyboard as well for just the option key. Another thing worth keeping in mind is ensuring that the keyboard is not faulty. When your Mac powers up, it normally uses the system on its internal hard drive unless you change this behavior by choosing System Preferences@@→Startup Disk. key board works fine on iMac. Power on your Mac while holding the option key on your keyboard. I'm using a Logitech MX Keys w/ wireless USB receiver. ... (On some Mac keyboards the Option key will be named Alt). I have to actually shut down. This is a real sweet keyboard and I love it. You can use the mouse or the keyboard to select a device to boot into. reset Pram. Wait 10 seconds. Holding down the Option key during startup will show you a boot screen with all bootable devices listed. The screen stays black. You can also change what your Mac does by holding down the following keys or key combinations during startup. Shut down your Mac and hold down Command-Option-P-R during boot. Next select Controller or iBridge in the sidebar. I just installed BootCamp on my 2013 Mac Pro and the option key doesn't seem to work when booting up. Have just bought a new aluminium wired keyboard for my 17" iMac Core 2, running Leopard. was running Mojave. … seems like it does not see key board soon enough. Now, press and hold the Option key and select System Information. The problem arises when I load into windows 10 and it can't boot back into the Mac portion because windows can't load the Mac OS boot volume.
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