You may need older USB-to-Serial drivers for your MSR hardware to work seamlessly with this software. Conclusion
As a 2017-era program, it may not receive updates for compatibility with modern operating systems (e.g., Windows 11/12). Magcard Write Read Utility Program V2017 -FREE- Download
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The is known to work with:
: Check Device Manager for the exact COM port number. Reinstall the Prolific or FTDI USB-to-Serial driver if a yellow exclamation mark is visible. "Read Error" or "Bad Swipe" You may need older USB-to-Serial drivers for your