Do not waste hours tweaking virtual drives or drive letters. Modern security patches have killed those methods. The game's DRM is 18 years old; it cannot be "fixed" via workarounds—it must be removed.
Newer systems often do not recognize older CD/DVD drive protocols, or the drive letter itself may be missing or unassigned.
Most PES 6 players use . This tool not only allows for easy modding (kits, stadiums, balls) but often includes a built-in "kload" function that helps the game bypass hardware checks. Place the kitserver folder in your PES 6 directory. Run setup.exe inside the kitserver folder. Click Install .