No, they did none of that. Microsoft had a scheme which the OEMs could agree to where they paid a fixed amount of money multiplied by the number of machines sol

No, they did none of that. Microsoft had a scheme which the OEMs could agree to where they paid a fixed amount of money multiplied by the number of machines sold. Thus they had zero incentive to sell with anything else when they already paid for Windows. And if you wanted to say, I will only pay after say 95% they said, then we will not make this agreement with you, this is only for OEMs who pay after all their computers...