If a USB drive has bad sectors, Windows Explorer will crash when you try to copy files. Win32 Disk Imager will attempt to read every sector. It will log errors but continue, allowing you to salvage a partial image that recovery software can later scan.

: The entire utility is roughly 12 MB, making it easy to store on even the smallest emergency toolkit drives. How to Use Win32 Disk Imager Portable

is a lightweight, open-source Windows utility that allows you to write raw disk images to removable storage like SD cards and USB drives. Because it is portable, it runs directly from a folder or USB drive without requiring installation, making it a favorite for developers working on "on-the-go" projects like Raspberry Pi or embedded Arm systems. Key Features & Benefits Win32 Disk Imager download | SourceForge.net