The PC may not had recognized the emulator when SW1was set to 0. Please click [Cancel] on the error message box, then reconnect the emulator to PC without changing the SW1status. [Welcome to the Found New Hardware Wizard] dialog box will open. Select a driver on the dialog to get the PC to recognize the emulator. After recognition of the emulator, shift the SW1 to 1, and start the E10A-USB emulator setup procedures from the beginning again.