Bottom line Windows is unable to uninstall the Canon driver "Canon MF642C/643C/644C" because a Canon Generic Plus UFR II V120 (x64) is in use. The whole story is a long convoluted mess, but basically my wife's laptop wasn't printing to our Canon MF644C printer. I remove...
Canon imageCLASS MF642C/643C/644CYes Canon imageCLASS MF743cdwYes1 Canon imageRUNNER 2625/2630YesYes Canon imageRUNNER ADVANCE 4545/4551YesYes Canon imageRUNNER ADV C5550/5560Yes Canon imageRUNNER C3120LYesYes Canon i-SENSYS MF4780wNoYes4