FileZilla

Today I found myself in need of a solid FTP client for Windows. I was
attempting to upload some files to a remote website, and I was getting
nowhere fast with Windows’ FTP folders. For reasons unknown, the FTP
folders lose connection with the remote site after about 20 seconds. A
quick Googlesearch later, I stumbled across FileZilla. It has
all the features I expect a good FTP client to have. Active/Passive
transfer modes, queue support, it’s all there. Plus it’s Free Software
to boot. If you need a FTP client for Windows, I recommend you check it
out.

Download FileZilla here.