I recently restored the Windows 7 Professional 64-bit system partition from a saved disc image. Task Scheduler and Event Viewer do not work, with the error "MMC could not create the snap-in. The snap-in might not have been installed correctly". In Control Panel>Programs & Features>Turn Windows features on or off, nothing is displayed. SFC showed no errors.
Everything else seems to work fine, and the disc image was made at a time with the snap-ins worked. Please advise.