Bests & Worsts Reviews from Amazon

I bought that laptop 2 month ago and upgraded the memory and got an SSD. Everything worked just fine a long time. But all of a sudden it started to tell me that my license key is not genuine anymore. I called Microsoft and asked them what is wrong with that key and they told me that this "Lenovo OEM key" got blocked by Lenovo itself. The only way to resolve that would be to call Lenovo. So I did.... The first women in support told me that my OS was just pre-installed but the license key still owned by Lenovo. I was technically not allowed to use the system since it was "not part of the package"???? So...She offered me three possibilities what she could do: 1. I can buy a new license directly from Lenovo ... 2. I can buy a recovery CD (that laptop hasn't even a CD drive)... 3. Purchase a Lenovo Premium Support Warranty to talk to a real technician... I told them that I was not willing to spend money on something they messed up and we continued arguing.... Eventually they transferred me 3 more time until I ended up with a technician on the line. After I described him the issue with my Windows 7 Key he agreed to remote in to check on that ... but he seemed pretty surprised that I had Windows 7 on it (??? I just told him) and recommended to upgrade to Windows 8 (damn no - it came with Windows 7...)... After talking some more minutes he figured out that this was actually a Thinkpad and said that he was not responsible for that and need to transfer me.... So he did ... to the very beginning (he just transferred me to the number I called first...) So I still have no working license and no-body seems responsible for that... That service was actually the worst I ever experienced ... they just collected my data (Name, Phone, Address...etc) 4 times!!!! and tried to sell me all kinds of unnecessary stuff - but did not solve my problem! ...took me bdw more that an hour...