I have a Lenovo H55 desktop updated to Windows 10. The F keys do not work during startup, so I cannot get into the BIOS settings. Pressing the F1 key during startup is supposed to take one to the BIOS settings. If I press the enter key on startup I get a screen with options one of which it to enter the BIOS and requires the F1 key. There is another option requiring the F8 key. Neither of these keys then do anything. Once Windows 10 has started the F keys work, for example while using the Chrome Browser. All suggestions are welcome. I have tried suggestions to alter the keyboard settings in Control panel Ease of Access. - Mike