Modern Windows versions require drivers to be digitally signed. Since the SU 1071 drivers are older, you may need to temporarily disable this security feature: Go to . Under Advanced startup , click Restart now .
Some older USB 2.0 devices struggle with USB 3.0 (blue) ports. Try plugging the device into a USB 2.0 (black) port for better stability. To help you get the best results, could you tell me:
The SU 1071 has a manual focus ring. Rotate the silver or black dial on the barrel of the microscope until the object comes into focus.