Hi Lego, I set the priority of dism & external apps high, as shown in the screenshot. But after start applying in the aio integrator, I just checked the priority of dism. Its normal! wintoolkit ver 1.5.3.9; dism (system) version 6.1.7600.16385; dism (installed) version: 6.3.9600.16384 Please fix. I found out one more thing: for mount and unmount, wintoolkit doesn't use dism. It uses ImageX. So why is it written that the process that require dism is mount & unmount (as shown in below screenshot)? Till now in any version (from 1.4, I started using wintoolkit from version 1.4.x.x), I haven't seen usage of dism in the mount & unmount. I have seen that its used by wintoolkit for integration (servicing). Thank you. Screenshots: