I have an SSD with 2 partitions, both with programs on them. I wish to merge the two partitions together so it's one giant C:\ drive with all the programs working. Which of the above software, if at all, would allow me to do this in the least fussiest way?

I'd imagine that this would involve the software crawling through the registry and changing every F:\ location to a C:\ one. Assuming that a software is able to do this, how would it screw up? Is it an "all or nothing" response where none of my translocated programs would work I'd need to reflash the disk with my previous image? Or would some links in somelocations stuff up because they were missed by the disk-software, and so a program could crash even though another wouldn't?