Whenever I switch to 64b in the LOTRO launcher window, enter the game and open the graphics option and click the DX9 option to switch to DX11 it either critical error crashes to desktop AND/OR drops all video on my system to 4 color VGA that persists on Desktop and any open programs after I'm out of LOTRO. When this happens the only way I can restore normal video is reboot my system.

I'm running LOTRO on my ASUS gaming laptop.

Windows 10 Home edition latest version with latest updates installed.

DX12 just installed using the LOTRO launcher Repair Utilities DX installer.

Processor: Intel Core i7-4710HQ CPU @ 2.50GHz 2.50GHz

RAM: 8.00 GB

System Type: 64-bit Operating System, x64-based processor

Video Card: NVIDIA GeForce GTX 860M with 4GB RAM latest video drivers installed