Unreal causes graphics card to crash

I have an i7 processor, nvidia gtx860m and the default Intel graphics card, and 16gb of ram. Launching either unreal or the launcher causes my graphics card to freeze. Occasionally I can run the engine for a matter of minutes before it causes my graphics card to crash.

I’ve seen other solutions such as making sure unreal uses the nvidia card versus the default Intel card but this hasn’t worked.

Please help!