Partitioning mostly makes sense if done in such a way that it makes it easier to have a good backup strategy, for example by having the OS, your current data and your archived data on 3 different partitions.
- For the OS partition, you make a regular image backup,
- For your current data you make a regular incremental backup (copying all changed or new files) and once in a while a full backup (so you won't get your deleted files back if you use that).
- For the archived data you make a regular incremental backup, and delete manually from that if you delete from the original.
And, if you have such files, you could make a partition for files you don't need or want to backup, because they are very easy to replace or you don't mind at all to lose them if the drive crashes or your laptop is stolen.
What are the benefits of partitioning my hard drive and how do it?