The laptop came with bios version 1.07. I was planning to add an extra 8gb ram so before that I updated the bios to version 1.09. Now, My laptop randomly shows a blue screen at a somewhat regular interval. The blue screen error code is WHEA Uncorrectable error. After showing a blue screen, the laptop tries to restart but it shows no bootable device. If I hold my power button and shut down the laptop and open again, it starts normally and works fine. But after some period it again shows the same blue screen problem? Can somebody please help me to fix this problem?