My Asus K52 isn’t the youngest anymore, but still works fine with a SSD. Since I installed win 10 there is something strange going on with te screen. If disconnecting the laptop from mains the backlight switches of. Connecting the power again and the backlight switches on again. I found in the device manager under Batteries: Microsoft ACPI Compliant control Method Battery. If I disable this driver, the backlight acts normal. I just can't see the status of the battery. Not really a problem. I can enable Microsoft ACPI Compliant control Method Battery to see the status of the battery an disable Microsoft ACPI Compliant control Method Battery again.