I mean by mix your full disk having everything all in one go and installlation. Windows XP, Service pack, Windows Media Player 11, Internet Explorer 7 and several addons (Third party upgrades and programs) plus drivers. By "Mix" I mean using nLite and Having it mix all that stuff together. Reformatting once it goes final is because you won't be able to install the final SP3 over a SP3 beta slipstreamed disk. Welcome to MSFN.