One of the most common problems that can occur within your computer is the problem with your storage device itself and may prevent you to access your meaningful data. Due to file system corruption, virus/ trojan attack, registry damages and many other, primary hard drive partitions may become RAW.
Same thing can also happens with your external hard drive to become RAW , suffering from logical damages. Once the internal or external hard drive turns into RAW, you'll not be able access stored data or can access your computer. Common fixes include formatting hard drive but involves risk of permanently erasing your data. Below is the simple error message that can be seen whenever you try to access RAW drives:
Below listed error types are also pops out when the drive become RAW:
windows cannot access the disk
external hard drive not recognized
the type of the file system is raw
However, Stellar Phoenix Partition Recovery has the capability to detect and scan problem RAW hard drive partitions as well as gives you preview of recoverable files in real time. 'Raw Recovery' is one of the four scanning options available in 'Drive Recovery' module of this tool. The 'Raw Recovery' scan is good at looking through each sector of the selected drive to recover traces of lost or deleted information. It reads file signatures to recover data. All the recovered files are listed in the main interface according to their corresponding file types.
You can download this recovery tool separately for Windows(Supports Windows 8/Windows 8.1) and Mac(Supports Yosemite) as well: