Oh! Calamity! Installed Win10 late Saturday and by Sunday evening had rolled back to Win7. I simply could not install graphics (NVidia Ge-Force) drivers. Code 43 was the most consistent response.. Even when I cleared out the Registry and did a complete new instal. Problems compounded by occasional blank screen requiring crash-restart, Screen sometimes like an obscured window with dragging cursor (clearly driver conflicts) and re-start times measured in many minutes. I'll wait a while before I try that again.
