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). Open Restore OS X and restore the original OS X. Then retry to erase the disk with Disk Utility. 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. To run Windows programs without having to install Windows. This method will allow you to run Mac and Windows applications concurrently, though the virtual machine does not support as much Windows functionality as a dual-boot configuration. 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+. To run Windows in a virtual machine within macOS, use Parallels Desktop, VMware Fusion, or VirtualBox. 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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