Are OEM keys legitimate?
>>55804868
Good for one activation. Don't fuck it up OP.
>>55804868
For 8 and 10
> Microsoft Toolkit
http://forums.mydigitallife.info/threads/28669-Microsoft-Toolkit-Official-KMS-Solution-for-Microsoft-Products
For 7 use DAZ Loader
>>55805706
Used OEM key a dozen time for activation, after a few you gotta call Microsoft and talk to a bot to reactive it and then you can use the key 5 more times or so.