The fix: The TK-3000 does not draw power from USB. You must have a fully charged battery. Remove the battery, re-seat it, and try again.
The RadioReference.com and Batlabs.com forums are the go-to archives. Search for "KPG-111D download." Experienced members often share self-extracting archives. Look for threads with high "thank you" counts. Always scan the ZIP file with Windows Defender or Malwarebytes before opening. Kenwood Tk-3000 Programming Software Download -HOT
Once connected, programming the TK-3000 is straightforward. The radio is narrowband compliant, so you must use 12.5 kHz channels. The fix: The TK-3000 does not draw power from USB
Software is useless without the right cable. The TK-3000 uses a microphone connector programming cable. Power: Set to "High" for range, "Low" for indoor use