If you lose your operating system, it can take days or even weeks to recover. Can your business stand to be down for that long? By protecting your system, you are closer to being able to provide either a Recovery Point Objective RPO or Recovery Time Objective RTO.
FDR/UPSTREAM can help to provide a fast recovery of your system with the simplest and minimal recovery steps. VMWARE, Hyper-V, Relax and Recovery for Linux, Windows Bare Metal Restores
FDR/UPSTREAM has all of it and much more.