I just installed a new solid state drive on my Windows 10 box. I cloned the existing HDD using Samsung’s data migration tool, and then ran Samsung’s Magician tool to optimize it for the OS.
But the latter seems to have partitioned the drive in a very odd way, I cannot quite figure out what’s going on. It has created the following 4 partitions
I’m used to seeing the relatively small non-boot primary partition (#1), and of course the standard primary partition (#2), but I cannot figure out why there’s a massive system reserved partition (#3) or an equally massive logical drive.
What does the old hard drive’s partition table look like?
I agree with everything you say is weird. But there’s an additional bit of weirdness. The SYSTEM RESERVED drive should be the 100MB one. It shouldn’t be a 92GB drive. It’s supposed to be a really small partition that’s used to load the bootloader which then loads the primary Windows partition. (It can load it even if the drive is encrypted.)
I cannot think of any reason why the configuration you show would be any better, given what I know about how SSDs work. The only thing I can think happened is that it tried to preserve the partitions that were already on the SSD, and did a lousy job of it.
Since they have drive letters, and you presumably could make another clone if anything goes wrong, I’d suggest making sure there are no files on any of those 92GB partitions (make sure you can see system files, too) and then deleting the partitions. Assuming that works fine, then just expand the C: partition to take up the rest of the disk.
Or, if the original hard drive looks normal, then I might try completely removing all partitions from the SSD and then cloning again. If you don’t trust Samsung, you can try downloading the GParted boot disk, which will have Partimage on it. It will clone and then expand the drive.