I am looking to put together a USB stick with a fully up to date Windows install and a few tweaks. The tweaks and services stuff seems simple enough. The updates I'm a bit confused on. I downloaded all of the updates available on Win Hotfix Downloader. I'm starting with a Win 7 SP1 iso. How do I know which of these updates are for post SP1? Also, is there any disadvantage to integrating everything? I don't care about image size as it's all going on a 16GB USB stick.