How do you secure moen Viletta lav faucet handle?

To secure the Moen Viletta lav faucet handle, first, remove the handle by loosening the set screw located underneath the handle using an Allen wrench. Once the handle is removed, ensure the mounting hardware is tight and properly positioned. Reattach the handle, aligning it correctly, and tighten the set screw securely to prevent any wobbling. Finally, test the handle's movement to ensure it operates smoothly and is securely in place.