1 T71-173401 Lenovo G770 1037-2VU Laptop Computer - Intel Core i5-2430M 2.40GHz, 6GB DDR3, 750GB HDD, DVDRW, 17.3" Display, Windows 7 Home Premium 64-bit, The above system will not complete an upgrade from Windows 7 Home Premium to Windows 8 Pro. It does all of the correct things to complete the upgrade until it finishes an extensive what appears to be doing all the details of the in-place upgrade. With another upgrade license, a much older Windows 7 Pro x64 successfully completed the installation without a wimper; except I much prefer the old Desktop and installed "Classic Shell Start Menu" by Ivosoft. Have been using this config for several weeks, only with Adobe Acrobat issues from time to time. Does anyone have an answer for the Lenovo's problems?