The next PC to try imaging was an old Compaq Pentium III/800. I had previously installed Vista on it and had bumped up the memory to 512MB and the HDD to 40GB. This PC is one I kept around for just this sort of testing. The biggest issue is its lack of USB ports especially as one was needed for the mouse and the HDD at startup needed both its plugs connected for power. I decided to do without the mouse and boot WinPE from a CD. Getting the image reload going is no problem off the external HDD. The main delay in this case is due to this old computer having only USB1.1 and therefore transferring data off the external HDD slower. About 90 minutes being the estimated load time in this case. Actually it took about 60 minutes, and it worked just the same as the other PCs.