I have seen it a lot, since I do testing with ISO of Windows Enterprise downloaded from Microsoft that have been showing this problem. It didn’t seem to happen with all ISO so I investigated the issue, filed a bug with Apple, and figured out a workaround to the problem. Update (July 26, 2018): macOS High Sierra 10.13.6 ReleasedDownload Windows 10 Disc Image (ISO File) Before updating, please refer to the Windows release information status for known issues to confirm your device is not impacted.In the last few months, people installing Windows on their Macs with Boot Camp Assistant have started seeing the message “An Error occurred while copying the Windows installation files” when using some Windows 10 ISO downloaded from Microsoft. ISO Full Version Download. I want to restore that.The macOS ISO file will not open on Windows Just create a new virtual machine for macOS and add the ISO file to the virtual machine and then start the installation Click the button below to get macOS Mojave 10.14 ISO file to your computer. My computer doesnt have a CD drive (MacBook Air).Copies all the files from the ISO that was specified at the start of the process by the user to the OSXRESERVED partition. Both are formatted as FAT32. Creates 2 partitions, one where Windows will be installed (“BOOTCAMP”) and one where the installer files will reside (“OSXRESERVED”). Download the Windows Support software from Apple for the current Mac. To do this, it does the following operations:
![]() Windows Windows 10 Disc ImageSets the boot disk to the OSXRESERVED partition and reboots.Windows boots from the OSXRESERVED and shows the available editions of Windows from the install.wim file in the support folder on OSXRESERVED. These files provide both the drivers needed when installing and the drivers that are installed post-install. Copies the files from the WindowsSupport to the OSXRESERVED partition. Video software for a macThis file is required, so the whole process aborts.To make matters even worse, the disk in the Mac is left in a state where it is difficult to revert back to a single partition. Each new version of Windows increases the size of this file, and ISOs that contain more editions of Windows can be larger than other ISOs that contain less editions.In step 3 above, the error message “An Error occurred while copying the Windows installation files” is shown because Boot Camp assistant cannot copy the install.wim to a FAT32 filesystem. The install.wim contains all of the files for a vanilla copy of Windows 10 and is the largest file in the installer ISO.So, here is where the problem resides: FAT32 cannot handle files greater than 4 GB. ![]() Download Boot Camp ISO Converter ( ) and install. Click Apply to start the partition removal process. Select the BOOTCAMP partition and click the “-” button to remove the partition. Select the OSXRESERVED partition and click the “-” button to remove the partition. ![]()
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