Sony gadgets are excellent technique, but still not perfect. Therefore, sometimes there is a need to solve problems via BIOS. But in the line of laptops Sonyvaio has some features of entry into this basic system.
You need to start with the full restart of the device, since only in this case you can make changes to the BIOS settings. You can try to get into the basic system of your laptop by pressing the F2 button (in some models F3). This needs to be done quickly immediately after turning on the gadget and before the operating system is loaded.At the end, do not forget to consolidate all the changes using the Save & Exit Setup item or the F10 button. In the window that appears, confirm your intentions to keep the "edits" by pressing the "Y" symbol.
Great recommendation, thank you very much!