Playing an old game.

Recently I thought I would replay an old game that I enjoyed back in 2006, only to find out that it won't start. It's a WW11 tank game called Panzer Elite Action. Fields of Glory. A program compatibility box came up saying that a digitally signed driver is required lirsgt.sys. Windows blocked the installation of a digitally unsigned driver. Check publishers website for a digitally signed version of the driver. Tages drivers ( error577 )

I checked the web site only to find out that it doesn't exist anymore. So anyone know how I could go about getting this game to play again, that isn't too technical, as anything too tech will be a bit much for me to do as I'm not a geek. I'm running windows 10 on a new machine.

Thanks Ivan