It is technically impossible to create a bit-for-bit "backup" of a protected dongle using standard disk imaging software.
These utilities allow users to manage hardware-bound licenses digitally to prevent downtime from hardware failure or loss. Data Extraction & Backup usb dongle backup and recovery 2012 proexe link
Backing up a dongle you legally own for the purposes of archiving and disaster recovery is generally permitted in many jurisdictions under "fair use" for interoperability. However: It is technically impossible to create a bit-for-bit
You cannot simply "copy" a dongle using Windows File Explorer. That would be like trying to photocopy your car key. The dongle contains encrypted data and a unique silicon fingerprint. usb dongle backup and recovery 2012 proexe link