If you are experiencing an issue on booting into Remix OS on your PC, you may want to try the listed instructions step-by-step to see if any of them helps.
In general, this is a compatibility issue between Remix OS for PC and the GPU of your device. You can change the resolution of your device as to get into the system.
1. Disable Secure Boot and Bitlocker
2. Use the 'vga command'
3. Disable the external graphic card of your device and then running Remix OS through the onboard graphic card
4. Use the ‘androidboot.swrast=1’