Thanks Blake@Asus
Now laptop is having additional problems (not sure due to same reason).
I am currently having problems with Nvidia 2070 video card. It ramdomly:
a) Dissapear from Device Manager, only Intel video card is seen. In this case, laptop works well.
b) When Nvidia card appears in device manager, after a while, fans starts working at full speed and I get BSOD with "DXGKRNL_FATAL_ERROR" or "Driver Power State failure" messages
I have sent the laptop to repair to ASUS, they have reinstalled windows and replaced the battery but still same problem. I am about to send again to Asus for repair.
Windows 10. Latest BIOS 310 and latest drivers from Nvidia.
Any clue is more than welcomed.