I do not know how to activate a system for example a desktop that came with windows 7 pro. Because its COA sticker has been damaged. Using a tool like rw everything I can see the system has an slic in bios. Now on newer windows 8 systems the key is embedded in bios and is really easy to pull and activate. so for older windows 7 systems with No COA is there a way to activate the edition that the pc shipped with? And I only want a solution that is genuine activation. No windows loader.