Diego bought a service manual online for his car and he's having issues opening it through the browser. Leo says EDGE should be able to open PDF files, and it should be on the computer already. But when Diego does that, the CD freezes. Leo says it could be copy-protected, and that could be causing the problem. If he can get it off the CD, that would help. But they may have coded it in such a way that he can only open it through Internet Explorer due to copy protection. But Microsoft has killed Internet Explorer now. So Diego may be stuck.
Another thing he can do is open the files on an older computer that still uses Internet Explorer.