No Graphics/no Sound

A couple of days ago i was playing a game on my pc and everything stopped
and up on the screen said you have restored to a previous back up of your
registry and you must restart.I did this and when it came back on there was
nothing installed on my pc any more it was like i had wiped it and started
again i got myself back on the internet first and installed a lot of my software i had on back on and went to do the sound and graphics but for some
reason they will not install back on i have belarc advisor on my pc so i used that to find out what my sound is and also my graphics and went to find drivers for them but cant get either to go back on.Im running windows 98se
card is an Nvidia Geforce so hopefully you will be able to help me out.

you will need drivers for the graphics card and sound card, for the graphics card you can get the drivers from here Home | NVIDIA Newsroom for Win98.

Do you know which motherboard you have? if not download the software from http://www.lavalys.com/products/overview.php?pid=1&lang=en it tells you quite a bit about your computer. This will help us find the drivers you need for the sound card.