There are a few factors that could cause lost or deleted partitions, including: If you get an error message that a partition is missing, naturally the first question you’ll have is “what happened?”. Let’s take a look at what might have happened, whether you can recover the partition, look at a step-by-step guide of a recovery utility that can make finding and restoring your missing partition easy, and discuss how to prevent future problems with your system. The good news is that when you get those dreaded error messages, there’s still a chance that to recover partitions that are missing. Unfortunately, disasters happen, no matter how well you care for your computer.