If you need to transfer a large amount of data over FTP, I seriously suggest that you use FileZilla. The software is very easy to install and use, and is vey fast. There are versions available for different operating systems. I use this tool at work and have no problems. But if I try and use Windows Explorer FTP, it crawls and spends ages calculating the number of files to be transferred and the time remaining. Personally, I think Microsoft should get rid of that function that calculates the number of files and time remaining. The timings are inaccurate, and this feature really prolongs the agony of doing a considerable file transfer or copy. Using Microsoft’s xcopy is much faster than using Windows Explorer to copy files.