If you are using a very old Samsung device (like the Galaxy S3 or S4), you may need the legacy software rather than the standalone USB driver. Modern drivers are designed for newer devices, while Kies contains the drivers for older models.
To use a Samsung mobile device with Windows 7 (32-bit), you primarily need the . This package allows your computer to communicate with your phone or tablet for file transfers, data syncing, and development tasks. Official Download & Purpose samsung usb driver for windows 7 32-bit
Follow these steps carefully on your Windows 7 (32-bit) machine: If you are using a very old Samsung