Hi i have Gigabyte P15 laptop and its been working great other than this problem. The laptop battery isn't great so doesn't hold but i use it on a table so i've not been bothered. The other day i had a power outage at home and when the power came back on my laptop was showing no boot device found. I had to go into the bios and change my settings back to allow my boot deice to be found, i changed the internal battery but still happens. Any ideas why this is happening.