Try this and see if it works out.
If you really need to access the Advanced tab in the BIOS, there are many methods you can at least try out.
- Boot up your computer. When you see the startup logo screen, press CTRL+F10 and then CTRL+F11 to get into the BIOS. (It only works for some computer and you may need to try it for a few times until you get in).
- Boot up your computer and then press the F8, F9, F10 or Del key to get in to BIOS. Then quickly press the A key to show the Advanced settings.
- In the BIOS, press Fn+Tab for 3 times.
If you find the Advanced settings tab missing in the BIOS, that is because your manufacturer has locked the settings on your computer as the improper use of the Advanced settings in BIOS could damage your computer, and in most cases there is no way to unlock it.