I am using Macrium Reflect (FREE) v5.2 and have been having no problems imaging my C: drive (2 partitions: Windows 7 32-bit and and all files) to external drive J:\.
Suddenly Macrium Reflect will run the image but only after a restart (I have Macrium Reflect set to shutdown upon image completion). I don’t find that the image has been saved. As a test, I imaged only the small Windows 7 partition and it ran and was saved on J: as specified. But the full image fails to be saved. I tried another test to external drive K:\. It too, failed to be saved.
Disk space is not an issue as my image file had been running 170GB and my J:\ has 600GB free space.
Macrium Reflect has a Forum but only for paying customers… BOO!