Hi All, Has anyone here heavily tried/used these alternatives: http://forums.mydigitallife.info/threads/35650-Creating-a-Windows-8-1-AIO-with-Media-Center-manually http://www.winreducer.net/ http://www.nliteos.com/ If so, how do they compare to Windows Toolkit IYO? I'm wanting to create a bootable Window 7 Ultimate USB flash drive... But, I also want to merge a Windows 8 Pro Upgrade into that install environment. The copy of Windows 8 Pro I've bought is a upgrade only, + it's a single license only. So I'm worried I'll run into problems trying to merge them into a bootable install env? Plus, how big would my USB flash drive need to be? I understand 4GB should suffice for Win 7 Ultimate, but maybe I need much more space if I merge Win 8 Pro Upgrade. Thank-you.