I am reviewing options available to build a custom, integrated Windows 7 Ultimate ISO. The goal is to start with a fresh ISO, and then integrate updates, applications, drivers, etc., to end up with the customized installation ISO. My question: Can an x64 ISO be built on an x86 machine? The resulting ISO will be deployed on an x64 machine. I have reviewed some of the integration guides here at MDL as well as other tutorials online, but would like some feedback from MDL members. Though the obvious answer is no, still, I am not sure, so I pose this question to the experienced ones here. Thanks for your input.
Be best to do x64 on an x64 machine, be is physical or virtual. This will save you any headaches with incompatible programs, drivers, etc. As exe98 said, sysprep would be the easiest option.
If your just installing updates & drivers then there's no issue creating a 64bit ISO under a 32bit environment. Your not running/installing any 64bit code. If you want to have pre-install apps like Office, then you would need to install the OS in Audit mode & Sysprep /generalize when done as been suggested...