I have an old computer running on Windows 2000 and have 2 hard drives now. The main drive is called the D drive and the one I added on was labelled as the C drive. D drive is 3Gb and C drive is 18-19Gb. I have all my windows programs stored on the D drive for now. The problem is that when I try to save things (download) that it really doesn't recognize the new C drive. It just says that I am out of hard drive space. The system recognizes the C drive as installed and working properly though. I tried to manually tell the computer to save a program to the C drive and it worked but says that the program isn't a valid WIN32 program but it works on the smaller D drive. Is the C drive lacking something or should I just transfer everything to the C drive. I tried transferring but I don't really know how to transfer everything on the D drive to the new C drive. Can anyone help?