my keyboard
 

my keyboard on my notebook has stopped working and i have to use on screen keyboard please help me fix the probblem

On screen keyboards ftw!

Do you manage to get past your boot screen without a keyboard? Ideally it should stop you and ask you to press F1 to continue. Try restarting your computer and see if your keyboard works on the boot screen. Press DEL to get to BIOS settings and reset them to default if possible.

i have tried this but the del not work the only key that does work is the enter and the / make plus signs and the up arrow makes the screen brighter

Sounds like a hardware fault then. Call tech support or take it to whomever fixes laptops in your local vicinity. Do call tech support first. My second cousin will probably pick up the phone.

^LOL.

If you're really adventurous and cheap, you could replace that keyboard yourself. Laptops can be taken apart like any other computer, and, chances are, there are detailed instructions on how to do so online, along with a replacement keyboard for $20 on fleabay.

You should check in the control panel of computer.It will surely let you know what has happened to your keyboard..