does installing windows on mac clear hard drive

You had two very different systems, both bootable. However - you have manually removed at least one partition that is a normal part of a Windows install. It cannot show a blank partition before installing a boot system on that partition - it's still blank, just formattedĪ reinstall of the OS X does a similar function to a Windows repair install. You won't see a new partition in the Option-boot screen, unless it is actually bootable - meaning that it has a system installed that the Option-boot screen will show. I like to format the space that I left, when I get to the Windows screen for preparing the partition for that Windows install. When that is complete, you can boot to your Windows installer. And, then continue with the OS X install to the partition, assuming you left enough space for the OS X install. The erase should only take a few seconds, then you can use Disk Utility, and continue on with adding a partition in proper format for a windows install, if that's what you want. You can do that by booting to an OS X bootble installer, then opening Disk Utility, and choosing the device, then Erase. By that, I mean backing up the Mac system (if you don't already have a backup), then wiping the drive (not just the boot partition, but wiping the drive to remove ALL partitions).

You may get the best results by starting over on the install. If you have 'adjusted' the various partitoins on the drive - you still have another system there, right?īy doing that, anything else on the drive is often left unbootable, too.Ĭan you still successfully boot to the Mac system? Or is that also not booting?

Does installing windows on mac clear hard drive