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The Lenovo Y40-70 has 2 video card, 1 internal radeon include in the processor and and external one R200 series.To prevent windows of using the internal one, i deactivated the it. But now on boot, nothing is displayed and windows doesn’t finish to boot. Based on this i cannot go back into BIOS to try to fix this. ANY IDEA how to solve this issue? Thanks,
Hi, If you meant a Y40-50 then try a power refresh and check if this allows you back into BIOS. Normally a power refresh restores the BIOS to its factory default settings. If it works then any other user definable settings that you have altered to suit your particular requirements will have to be changed back to what you had. Turn off the laptop if on and remove the charger if connected. Remove the back cover from the laptop and then remove the battery from the laptop. Press and hold the laptop’s Power On button for a full 30 seconds and then release. Reinsert the battery into the laptop, replace the cover, reconnect the charger and turn on the laptop. Here’s the hardware maintenance manual for the laptop. This shows how to remove the battery
