If you own the Steam version of PES 2013 (delisted in 2018 but still downloadable for owners), Steam manages the Registry automatically. unless you have moved the installation folder using Steam's "Move Install Folder" feature.
Replace C:\\Games\\Pro Evolution Soccer 2013\\ with your copied path. Pes 2013 Registry File 64 Bit
: Double-click your new pes2013.reg file and click Yes when the prompt asks to add the information to the registry. Common Fixes for Registry Issues If you own the Steam version of PES
Once the registry file is added, the settings.exe application should now work correctly, allowing you to configure resolution and controls. This also fixes the issue for most patches, ensuring they can locate the pes2013.exe file. Pes 2013 Registry File 64 Bit
Many patches (like PESEdit) require these registry entries to identify the game directory.