In the window, at the top of the left bar, select your Macs Main Drive and proceed with the installation. When it restarts, youll have a few options. This will restore the OS X version your Mac came with.Īfter rebooting and configuring your Mac open App Store, download and install Mac OS X Mavericks (if an older OS X version was installed previously). Plug in your bootable USB drive and Restart your Mac while holding the Option key. Open Restore OS X and restore the original OS X. This new system USB wise will only support USB 3.0. Then retry to erase the disk with Disk Utility. There are also an abundance of many other interesting features included in VirtualBox and Mac OS can also affect the performance of your base Windows Operating system. Sometimes Disk Utility won't allow you to erase the internal disk: open Terminal and enter diskutil umountDisk /dev/disk0 and dd if=/dev/zero of=/dev/disk0 bs=512 count=1. Open Disk Utility and partition your internal disk: GUID partition scheme (use the "Options." button at the bottom of the main pane for this), one partition, journaled HFS+. ![]() ![]() On a 50 Mbps-line it takes about 4 min (presenting a small animated globe) to boot to the Recovery Netboot image which is loaded from an Apple/Akamai server. In a few words you need the latest firmware update installed, either ethernet or WLAN (WPA/WPA2) and a router with DHCP activated for a successful internet recovery. The prerequisites for an Internet Recovery are listed here: Recovery/Internet Recovery. You can restore OS X in Internet Recovery Mode if you have a newer Mac:īoot to Internet Recovery Mode by pressing alt cmd R.
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