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#21
Jimbp.
There are three type of OEM License Key - and two types of OEM License.
OEM_SLP and OEM_COA_SLP (AKA COA_SLP) keys can ONLY be legally used on machines which shipped from the (large) manufacturer with that version and edition of Windows installed which is on the COA sticker on the case at manufacture.
OEM_COA_NSLP Keys are System Builder Keys for smaller builders.
Thus an Asus Key on a retail motherboard (or one from another manufacturer) is by definition counterfeit, since for 'activation' to occur it must have been forced by breaking the licensing rules by installation of a Loader/Activation Exploit, or by tampering the BIOS.