TT (along with other vendors) may want to reconsider this move if Microsoft will extended the end of life of Win 7. Why would Microsoft do this?
Microsoft is issuing security critical alerts (it has been in the press) one after an other. The update process is unstable and they have published workarounds. They are retrofitting the Win 10 update to be more like Win 7 (users can select critical versus optional updates).
Until this is stable, I will NOT upgrade to Win 10. TT should take this into consideration. It has the clout to put pressure on Microsoft.