PCloupe is a bare-bones screen magnifying utility.
PCloupe shows a magnified image for the area immediately around the cursor. The PCloupe window can be moved, resized, and made always on top if desired. It features three refresh rates including real-time (continuous). PCloupe supports a quick in/out zoom via left and right-mouse-click from inside the PCLoupe window. It also has a freeze-option to lock (freeze) the magnified area though a hot-key or via the menu.