need to wait before unmounting drive after .Net 4.5.2 install
need to wait before unmounting drive after .Net 4.5.2 install

gildas/packer-windows,gildas/packer-windows,TheBigBear/packer-windows-gildas,TheBigBear/packer-windows-gildas,TheBigBear/packer-windows-gildas,gildas/packer-windows