Unless you are installing the program from a CD or from floppy disks, create an empty temporary folder on the first partition, extract the zipped files to the folder, and run setup from there. Having the System folder and the Temp folder on different partitions is an extremely unusual configuration and is nothing a typical computer user should have to worry about. The Bug Form I am reporting a repeatable bug. I am reporting something that only happened once. I am reporting a bug that seems to occur at random.
Unauthorized reproduction is frowned upon.