jakeisham :
So I am not allowed to sell a system with an OS???
Yes you can. A Retail license can be sold however you wish. An OEM license can be sold, with the hardware it lives on.
An education license, OTOH, can't be transferred to a person that can't obtain an edu license on their own.
For instance, you can't sell that to me.
And for whatever license you sell, you must also give the new owner the actual license key, and you personally cannot continue to use it.