Hi,
Please do a clean install of the graphics driver of the new GPU that was just installed.
- First is to uninstall all the old drivers of the other GPU.
- Go to Device Manager and uninstall the Nvidia graphics driver.
- Next is to open Programs and Features then uninstall anything related to Nvidia.
- Once done, download and install the latest driver.
- Here's the link:
http
/www.nvidia.com/Download/index.aspx
- Just selec the Automatic Download and install of the graphics driver.
- Reboot the laptop once the latest driver has been installed and test it again after the reboot.