Method 1: UUByte ISO Editor with VMWare Fusion We will suggest two useful methods in here. However, if you could not complete the task with Boot Camp app, then you have to use alternative tools to install Windows 10 on macOS Big Sur. There is not enough space available on the disk.īoot Camp is your first choice when trying to install Windows 10 on macOS Big Sur.An error occurred while copying the Windows installation file.An error occurred while partitioning the disk.The startup disk does not have enough space to be partitioned.Potential Issues with Boot Camp Assistant: