Can you post your Lenovo Exact Make & Model?
Does your laptop support Switchable Graphics? Configuring Laptop Switchable Graphics on a Windows® Based System | AMD
Here is the latest R5 M330 Laptop Drivers from AMD Download: AMD Radeon™ R5 330 Drivers & Support | AMD and how to correctly update your AMD Laptop driver: https://community.amd.com/thread/207699
But it is always best to use Lenovo's Laptop Graphics Drivers since they are 100% compatible and uses all the features of your laptop.
NOTE: Your Intel Integrated Graphics drivers and CHIPSET must be the latest for the AMD Driver to work correctly.
See if there are any new BIOS for your laptop besides the one you have installed.
NOTE: amdmatt mentions that headless Graphic cards (no outputs) do work automatically in switchable Laptops. I forgot how AMDMATT explained how you can actually tell if the laptop is using switchable graphics on it or not.