Plster5-mw.rar -

Did you download this from an official manufacturer support portal (e.g., Rockwell Automation , Yamaha , or Honeywell )?

Do you know the you are trying to update? Knowing the hardware would help me provide the exact installation steps. Drivers & Firmware - Rockwell Automation PLSTER5-MW.rar

Look for a text file (e.g., README.txt or Install_Guide.pdf ). Did you download this from an official manufacturer