Create a copy of your original pes2013.exe just in case.
This error occurs because PES 2013 was designed to check for a physical DVD inside the computer's drive to verify ownership. Modern laptops and desktop PCs rarely include optical drives, and digital copies often lack the file structure the game expects. pes2013nocddvdromdrivefound verified
(typically C:\Program Files (x86)\KONAMI\Pro Evolution Soccer 2013 ). Create a copy of your original pes2013