Quote from stav:
You may want to try a realtime replicator on an external HDD. For $100 you can offer yourself such a device and get the free Karen's replicator here http://www.karenware.com/. This setup will continuousely compare your c:\ to your external HDD and write/update the new files.
If you need to image your C:\ (which is different from backup) have a look at www.majorgeeks.com under backup. There is a ton of good imagers there for all prices.
Quote from stav:
ur right, the replication process gives few errors. I suspect (without having check this further) that these errors come from various windows hidden files that cannot be replicated by the program. But don't worry about those, what you wanna make sure is that all your files are properly copied to the HDD. Now if u want all files to be copied then an immager should do the job for u.