IT IS NO LONGER SUPPORTED.Bootcamp is the best solution for running power demanding games even on modest hardware. WE HAVE LEFT THIS ARTICLE AND THE DOWNLOAD FOR HISTORICAL PURPOSES. 64GB or more free storage space on your Mac startup disk: Your Mac can have as little as 64GB of free storage space, but at least 128GB of free storage space provides the best experience.NOTE: THIS UTILITY SHOULD NO LONGER BE NEEDED DUE TO APPLE UPDATING BOOT CAMP ASSISTANT TO USE EXFAT. You will use Boot Camp Assistant to install Windows 10. The latest macOS updates, which can include updates to Boot Camp Assistant.To do this, it does the following operations: The CauseWhen Windows 10 is installed with Boot Camp Assistant, Boot Camp Assistant prepares the disk for installation. 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. 2A Mac computer with an Intel processor (Boot Camp will not run on computers equipped with Apple Silicon aka M1 processor) Learn more At least 128GB free.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. If you have an iMac Pro or Mac Pro with 128GB of memory (RAM) or more, your startup disk needs at least as much free storage space as your Mac has memory. Automatic Windows updates require that much space or more.
Is Bootcamp Free Storage SpaceCopies the files from the WindowsSupport to the OSXRESERVED partition. This is where the error happens. 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”). Email tracking for outlook 2015 on 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. This is a large file (usually around 4 GB). Sets 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. Repartitioning could fail due to drive errors, so having a good backup is important. Make sure you have a good backup of all files on the disk that could be lost, including all the Mac files. Here is a step-by-step instructions: Removing the installer partitions We have created a free utility called “Boot Camp ISO Converter” that copies all the files in the ISO to a folder, splits up the install.wim into parts no larger than 2GB, and creates a new ISO that can be used with Boot Camp Assistant. The SolutionTo resolve this issue, both FAT32 partitions need to be removed from the disk and a new ISO must be created where no single file is larger than 4GB. ![]() The WIM format supports split files when installing Windows, the Windows installer recognizes the split files as treats them as a single large file, as long as all the split files are in the same folder. After the operation is completed, the new ISO can be used to install Windows with Boot Camp assistant following the standard process.Boot Camp ISO Converter uses a command like tool called “wimsplit” to split the wim into parts no larger than 2GB. Click “Save…” and specify a name and location for the new ISO. Open Boot Camp ISO Converter and select the ISO that caused the error.
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