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When removing other USB devices (for example, Flash Drives) connected to the PC while a USB programmer is actively engaged in an operation, use the "Safely Remove Hardware" icon in the Windows system tray first to avoid potential communication errors.
"Surprise Removals" can be problematic on some PCs if the removed USB device is connected to the same USB hub as the programmer, including integrated hubs inside of most PCs.
The "Safely Remove Hardware" icon will appear for devices that Microsoft recommends its usage.
In the event that such a communication error does occur, BPWin will terminate the operation and report the error issued by the Operating System.