My keyboard had a brightness control option using the keys "fn + f9" and "fn + f10". Every one of us has seen these 12 function keys on the Keyboard. ... the action of the printed symbol on the key. Hi, I tried lot of things but the Fn+F9 and the Fn+F10 key combinatons stil not control my display's brightness. Use this information to troubleshoot common keyboard problems on notebook computers. Some models might support pressing F10 immediately after powering on the notebook to enter the Startup Menu. Normally, the Compaq or HP splash screen will display a message to press F10 to enter the BIOS just before the BIOS menu is displayed. For HP Laptops you need to press F1 or F2 or F10 or F12 key depending on the model when you see the HP Logo after powering on or restarting your laptop. If you have a gaming notebook such as an HP OMEN, go to HP OMEN Command Center for more information about the backlit keyboard and other features. For Lenovo Laptops you need to press F1 or F2 key when you see the Lenovo Logo after powering on or restarting your laptop. With the computer turned Off, press the power button to turn On the computer, and repeatedly press the F10 key. Some notebook computers use a feature called Action Key mode that allows you to perform the secondary action without needing to press the Fn key first. • The action keys may vary depending on the model of notebook. As soon as the computer is turned on, press F10 when the monitor light turns green to enter Computer Setup. caution: ... Press F10 to open the BIOS settings. These function keys perform different functions in different applications and programs. I have an HP ProBook 445 G2 Notebook PC that came with Windows 8.1 Enterprise. Hope the information provided is useful. If the issue persists, reply here and we will be glad to help you. I’m assuming a Windows environment, in the system tray, usually in the lower right side, there is a collection of icons (some may be hidden, they might be displayed by clickin on the ^), find the one that looks like a speaker “ ” . NOTE: If you do not press F10 at the appropriate time, you must restart the computer and again press F10 when the monitor light turns green to access the utility. The function key (fn) option can be reset at any time. Note: Common boot menu keys to access the boot menu are F2, F10, F12, Delete, Esc, etc. Turn on or off the backlight If your notebook computer has a backlit keyboard, press the F5 or F4 (some models) key on the keyboard … I use HP ElitBook 840 G1 and all the latest driver and software is up to date, and I use the latest Windows 10 64bit. Your HP keyboard might have extra keys or buttons with icons as well. • Press the f10 key to save the selection and restart the computer. Notebooks manufactured between 2008 and mid-2011: If a Compaq or HP splash screen displays after the computer starts, press Escape when prompted to enter the Startup Menu, and then press F10 to enter the BIOS Setup Utility. HP Notebook PCs - Keyboard Troubleshooting (Windows) This document is for HP and Compaq notebook computers with Windows 10, Windows 8, or Windows 7. ... press Shift + F10 (Function key F10). I recently did a clean installation of Windows 10 Home. Press Enter to bypass the title screen, if necessary. Function Keys, F1, F2, F3, F4, F5, F6, F7, F8, F9, F10, F11, F12. 3. HP Boot Menu Key in Windows 10/8.1/8 All HP desktops and laptops that are manufactured with Windows system can use Secure Boot, which is enabled by default. But how many of us used these keys to have our jobs performed easier? Angel.