My O/S is Windows 7 Home Premium. The system now hangs on the log-in screen so that movement of the mouse does not move the cursor on screen, hence I am unable to click on my log-in icon. The keyboard, mouse and USB wireless stick are one of the Logitech range and work OK as proved on another desktop PC. I have tried inserting the USB wireless stick into a number of other USB ports on my PC without success. I have also tried booting in Safe Mode but the same thing happens. On the basis that the system goes through the POST tests without any obvious problem does this sound like a corrupted Windows file? I do have a MS Windows 7 disk so could run this if necessary.
Thanks