Before performing the recommended troubleshooting steps to Fix Windows Script Host Error, its best to restart your computer first.

The Witcher 3: Wild Hunt script compilation errors can occur even with a fresh install and prevent the game from running properly.

You can then successfully move the files to any of your computer’s internal drives and eliminate the “Can’t read from source file or disk” error.

Cannot import C:<file-name>reg: The specified file is not a registry script. You can only import binary registry files from within the registry editor.