05-19-2016 10:33 AM - edited 05-19-2016 11:57 PM
I have a laptop of Lenovo ThinkPad E540 (20C600JAMC) for Windows 10 64bit.
Graphics card Intel HD Graphics 4600 and NVIDIA GeForce GT 740M.
In the BIOS I have set the Intel card, the device manager then NVIDIA card and laptop works fine.
After the switch in the BIOS on the NVIDIA Windows Optim, already booted after switching off the machine.
I think it is related to the version of the BIOS, because the older version wasn't until after updating the BIOS, the problem appeared. When the set's BIOS graphics NVIDIA does not remember the time. Other values remain set.
Can you handle it?