I have one problem with my pc . for my driver . My driver adapter there are two Intel HD graphic I installed it ok ,but standard VGA graphics adapter ,it still unknown for my pc dell 3450 vostro
Drivers should be here http://www.dell.com/support/drivers/us/en/19/product/vostro-3450, remove the existing card from Device Manager, do not reboot. Install the drivers from the support site, reboot.