Open Boot Camp Assistant and try installing Windows again.Have tried the EFI shell commands you recommended:ģ) Format an USB stick in OS X Disk Utility (Choose Erase, Format: MS-DOS (FAT), Scheme: Master Boot Record)Ĥ) Copy apple_set_os.efi to the root directoryĥ) Create a folder structure in Finder as follows: EFI/Boot/boot圆4.efi.Click Apply, then click Partition to confirm.OSXRESERVED and BOOTCAMP are empty partitions that Boot Camp Assistant created during the failed installation. Click BOOTCAMP in the graph, then click the remove button (–).Click OSXRESERVED in the graph that appears, then click the remove button (–) below the graph.

If Disk Utility asks whether you would like to add a volume to the container or partition the device, click Partition.In the Disk Utility toolbar, click Partition.

Select your Mac startup disk (Macintosh HD) in the sidebar.

Open Disk Utility, which is in the Utilities folder of your Applications folder.If Boot Camp Assistant says that the startup disk cannot be partitioned or restored to a single partition, complete these additional steps: Download the latest edition of Windows 10 from Microsoft's website. Then use Boot Camp Assistant to install it.Install the latest macOS updates, which can include updates to Boot Camp.If you're in Boot Camp Assistant and it isn't responding, use Option-Command-Escape (Esc) to force the app to quit.In certain circumstances, Boot Camp Assistant might stop responding, or it might say that Boot Camp installation failed while copying the Windows installation files. Follow these steps to resolve the issue:

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