Aren't we all supposed to be using multi-layered security? Malwarebytes has its place. In the end it comes to convenience, you could just use backups/snapshots as security, but this requires a good library. If something goes wrong, it can be a pain to go back in time to work out when pre-infection was; and then workout what you have done since then to return to ‘now’. Other security will more than likely keep the system clean, so it is just short trip back in time if all hell breaks loose. If using a backup/snapshot only model, you want nothing but OS and programs on your C drive so nothing is lost with a restore. As well as a dual boot, this is just good housekeeping in general. I recently moved all my data off the C drive on my machines, and it was a bit of messing around, but when I did something stupid, the restore was painless and only required installation/update of a few programs to fix, as all my emails and data was intact on another drive.