On my Lenovo g500 laptop many keys(gh and many) are not working, what should I do?

Those units have a special reset procedure when this happens. The keys to hit are in the manual. Check it out

Hi,

I do google your problem and look to the lenovo G500 manual.
here's the manual says.

sources: http://www.lenovo.com/shop/americas/content/user_guides/g410_g510_ug_en.pdf

BIOS password problems I forgot my password. • If you forget your user password, you must ask the system administrator to reset your user password. • If you forget your HDD password, a Lenovo authorized servicer cannot reset your password or recover data from the hard disk. You must take your computer to a Lenovo authorized servicer or a marketing representative to have the hard disk drive replaced. Proof of purchase is required, and a fee will be charged for parts and service. • If you forget your administrator password, a Lenovo authorized servicer cannot reset your password. You must take your computer to a Lenovo authorized servicer or a marketing representative to have the system board replaced. Proof of purchase is required, and a fee will be charged for parts and service.


But in my own way of troubleshooting.
1. open your Lenovo G500
2. Check your motherboard and look for bios/cmos battery.
3. Remove the battery
4. Get flat screw driver then put it between two pins where the cmos battery attached.
5. Hold it for 10 to 15 sec.
6. Put the cmos battery back and the motherboard
7. Power it up and holla the bios setting has been reset to default.

Here the sample image of Lenovo G500 motherboard


http://www.lenovo.com/shop/americas/content/user_guides/g410_g510_ug_en.pdf

Lenovo G500 not booting from USB CD

When you start your computer. Hit the F8 key, and then a prompt will come up to boot in Safe Mode, Safe Mode with Networking, and Safe Mode in Command Prompt. Make your choice.

Lifting it up may break the buttons.... Can you try using cotton bud and try cleaning it; if it can enter without forcing it; dip it in a methylated spirit and apply it gently.

There is a variable (system setting) integrated into the Windows Update tab in the control panel that enables and disables notifications of automatic restart to complete the installation of system updates.

Hey,
Did you manage to solve the problem? I've got my g500 too, and cannot scroll with the touchpad...
Can you help me?

how do i turn on cam of lenovo G500/windows 8.1 OS

Near the power button there is a smaller button. Instead of power press this button and a menu will appear. You just have to choose BIOS Setup or Boot menu if you just want to change the boot order.