You can simply download the standalone Samsung USB driver from below and install it on your Windows computer. However, if it’s just the USB drivers that you’re looking for, then there’s no need to install Smart Switch on your PC at all. The manufacturer indeed provides the Smart Switch companion software that bundles the said USB driver. But if your computer fails to recognize your Galaxy smartphone/tablet, then you need to download and manually install the required USB drivers on your computer. In most cases, Windows should automatically detect the device and install the required drivers. For all these things, you will need to physically connect your device to the PC via a USB cable.