Big problem installation under W8, the pc completely planted during the restart, blue screen, Windows has encountered an error and needs to restart, and this to infinity. Only solution, the complete restoration which brought me back home under W7. Office relocation of 2013 and worked there alone powerpoint. Word and Excell encountered a problem and dear windows promised me to look for a solution that I always expected of him ;-(. Fortunately I was not the only one with this problem and a little research on the forums gave me the solution (a program which I do not remember the name I want to uninstall)