Plug in the Converter, the cables to the VGA port and HDMI TV, before turning on the PC or Laptop.
If using a LAPTOP it may be needed to press Ctrl+F4 or F8 to release the VGA external display.
You might need to adjust the resolution on the laptops or PC. After adjusting the resolution you may need restart the machine.
The converter gets the power from the USB port. In some cases, corrupted USB ports may not provide enough power. If you have another USB port it is worth a try.