When I press the option button to change from OS to windows, why is there an extra "folder" called the EFI boot ? Can I delete it ? That extra folder seem to appear out of nowhere
MacBook Pro (13-inch Mid 2012)
Do you see OSX, Recovery HD, Windows and EFI Boot when you use the Alt Key? Is there any external storage (including Windows Installer USB) connected to the Mac?
When I clicked on the alt key what I have is the Macintosh HD, Windows and the EFI boot. There is no external storage that was connected . However, I've just updated my mac to get the new music app that's when I realise that the EFI boot appeared.
If you select EFI Boot, do you get any error messages?
Can you post the output of the following Terminal commands?
diskutil list
diskutil cs list
sudo gpt -vv -r show /dev/disk0
sudo fdisk /dev/disk0
The "sudo" commands will prompt for your password, and it will not be echoed back. You may also see a warning about improper use of "sudo" and potential data loss due to "abuse" of the command.
These should help in deciding if the disk partitions look clean.
Nope. No errors. It just shows Reinstall OS, Time machine, Disk utility, and Safari to see how apple can help with the problem.
How do I get the Terminal commands?
Did you recently update also contain an EFI update? What you describe is Recovery HD.
You can get to Terminal using Utilities -> Terminal.
No updates on the EFI
When I opened terminal under utilities, there were only two sentences to it saying the last login and the macbook admin
Can you post the output of the following command from OS X Terminal?
diskutil list
EFI boot
