From Lenovo Support on how to make your laptop work with Switchable graphics: How to configure switchable graphics on idea/Lenovo laptops .
From AMD Forums on how to update and make your laptop Switchable graphics work: Laptop graphics update...How to and Configuring Laptop Switchable Graphics on a Windows® Based System .
The latest AMD Laptop generic driver for your FX-7500 APU: https://support.amd.com/en-us/download/apu?os=Windows%2010%20-%2064 .
From Lenovo Support for your Laptop Drivers:
Try upgrading your BIOS to the latest and installing Lenovo own AMD drivers: laptops and netbooks :: lenovo z series laptops :: lenovo z50 75 Lenovo PC Support
- BIOS/UEFI (1)
- BIOS Update for Windows 7 (32-bit, 64-bit), Windows 8 (64-bit), Windows 8.1 (64-bit), Windows 10 (64-bit) - Lenovo Z40-75, Z50-75
- 30 Jan 2018
- Display and Video Graphics (1)
- AMD VGA Driver for Windows 10 (64-bit) - Notebook
- 18 Jan 2017