I just started using a MSI GE40 laptop with intel HD 4600 and a NVIDIA graphics (in optimus mode I believe).
There is an annoying bug that the screen every now and then blinks dark (I guess it's a single black frame, but have no way to verify it). The blinking is of low intensity (i'd say maybe a few times a minute at most) and correlates with on-screen activities. When I do nothing and the screen does not change, this seems not to happen.
All the relevant drivers are the latest: intel iGFX is 10.18.10.3907, NVIDIA card is 188.8.131.5211. I had this with .3496 for intel and .332.35 NV as well. I tried disabling the optimus either way (so that either card is the only active) - didn't go away. I tried disabling the devices in device managed, one at a time, same result.
What seems to have helped is to disable "Automatyczne odswiezanie panelu" in "Zasilanie" under "Zasilanie z baterii" through "Panel strowniczy grafiki HD Intel(r)" (an app). I do not feel like misguiding you by providing possibly incorrect translation, sorry for that.
BTW MSI provides a BIOS UEFI update that has a description of "fix panel that have PSR function happen flash sometimes under DC mode", but I am unwilling to verify what it means if the outcome of applying it erroneously could be "(...) Failure to abide may result in bricking your system."
Let me help you with that.
Based on all the information you have provided, I would like you to do the following troubleshooting steps:
If you get messages during the installation, try the steps here: