Just built a new machine with an Asus Z170M-Plus board to house my W7 Ultimate SP1 system.
The base ISO is a 2012 W7 multi-choice disc. I used this plus 200-odd Windows updates and NTLite Free to create a new integrated ISO.
The resultant installer worked but was less than satisfactory. Like, MS Windows Updates now tells me I'm lacking SP1 and another 100 updates.
Is there a better way to patch an ISO with updates?