If you are using a new pen drive, you must first format it to work with the emulator: Launch Format : Open the tool and select the Configure Blocks
: Originally designed for Win2K/XP, it can still run on modern systems like Windows 10 using Windows 7 Compatibility Mode and "Run as Administrator" settings. How to Use the Multi-Floppy Service floppy manager tool v123-sfd.exe
If you are putting files together for an older system (like DOS), ensure filenames follow the 8.3 format (8 characters, no spaces). If you are using a new pen drive,