Filezilla – FileZilla is free FTP program that allows you to update files in your hosting account.
Many web developers utilize this piece of software to manage their website/s. It has a built in FTP client so that you can manage your files on a remote computer. However, this piece of software is not free. It can be purchase online or at most electronic retailers.
WinSCP – WinSCP is another free SFTP/FTP program that allow s you to manage files in your hosting account.
Windows has a built in FTP program through Explorer. It allows you to move files back and forth just like you if you were moving files in your My Documents folder.