how do i update drivers windows without losing anything?

updating a driver doesn't touch your files at all, so nothing personal is at risk here. and if the new one makes things worse, device manager, right-click the device, properties, driver tab, roll back driver puts the old one back.

device manager almost always says you already have the best driver, which is not the same as being true. get it from the manufacturer's site for that exact model. make a restore point first if it's a working machine.