Probably. You need to find out if the Ethernet device is on the motherboard or a separate PCI card. Then search Google for the drivers.
OK, so I got a second hand computer with Windows 7 Professional 32-bit. I couldn't connect to the internet or see any newtowks on the network control panel so I looked at hardware. Apparently I don't have an "ethernet controller" driver (amongst a couple of other drivers), which I guess is problematic since I'm trying to use an ethernet cable to connect to the internet. I can see some drivers online, but do I have to get a specific driver?