Hi, i have trouble with my custom build. I have integrated to clean windows 8.1 Pro 53 updates including Update 1 and .Net Framework 3.5, also created unatennded file with accept eula, s/n, time zone, keyb. lang. In remover removed all unneeded languages and keyboard layouts, also checked automatic removing process. The output iso file size is 4.62Gb (uefi boot compatibility), but when i try to write my iso to usb flash drive, there are one problem, install.wim size is 4.05Gb and files larger than 4Gb can't be written to usb in fat32 format. How to reduce size of install.wim file, i don't know what to remove else or how to compress better my iso file.