CUDA ERROR: Launch failed in cuCtxSynchronize()” and “cuCtxCreate: Launch failed” when Rendering in Cycles using GPU When I render my image, it stops, giving the error message "CUDA ERROR: Launch failed in cuCtxSynchronize() Line 1372", then when I try to start the render again, I get the error message "cuCtxCreate: Launch failed"  all the answers I have seen say to update your graphics card driver, however, mine is up to date.
I have a GTX1080 with 4gb of RAM.
Bumped into the same error once.

Found following thread at developers forum:


  Then it occurred to me that the Gforce Experience runs in the background (and being in my opinion, not a well written program) may be overlapping the memory of Blender or at least hogging the memory. So I un-installed it and magic! All Cuda errors and memory errors went away. Blender works again as it should!