I have Win7 Ultimate installed but it is not activated. Am I going to need a loader? I am pretty sure I understand that loaders differ from an act*vator which differs from a full release of a Win7 iso that is pre-activated. Right now loaders are the safest bet, correct? Alright next, will it matter which BIOS version I choose in the loader, or which manufacturer? Is this loading process also called "rearming"? Also, can someone explain what OEM SLP keys are for?