: Locate and download the patch files. For the 2020-2021 season update, popular versions include RZ-21 Patch 2021 or Professionals Patch V7 .

: Ensure you have a clean installation of Pro Evolution Soccer 2017. It is often recommended to delete any previous "Download" folder and "Option File" (found in Documents\KONAMI\Pro Evolution Soccer 2017\save ) to avoid conflicts.

Open your PES 2017 installation directory (usually C:\Program Files (x86)\KONAMI\Pro Evolution Soccer 2017 ).

Copy the contents of the patch's download folder into the game's existing download folder. Replace any files if prompted. : Go to the save folder from your extracted patch files.

Installing a patch for PES 2017 to update it to the 2020/2021 season (or more recent versions like 2022) is a standard process involving file extraction and replacement. While specific patches like the or Professionals Patch have unique files, the general installation steps remain consistent. General Installation Guide

Copy the EDIT00000000 file and paste it into Documents\KONAMI\Pro Evolution Soccer 2017\save . This file contains the actual player transfers and team lineups. :

: If you receive errors during extraction, ensure you have all parts of the download and try using the latest version of WinRAR.