I try to load a video driver and i get RPC is

Hello,

It could be due to this service has been disabled on your computer. To re-enable go to the control panel, click on "administrative tools", now look at the top left of the open window and choose "componet services" , on the left side look for the services tab and open that. Now you will see a long list of windows services running in the background of your computer.....scroll down the list now as is it in alphabetical order and look for the RPC tabs and see if they are "started" if they are not started , right click on the RPC after and then choose enable and select "starts automatic" to have this service start when your computer boots each time . BTW, this is a important service and should always be started. Good luck.