Experts, brothers and sisters: I have an old Sony laptop. After so long, the CD-ROM drive no longer works. Because I messed up the system by accident, it crashed. It won't boot now and can only enter the BIOS. I want to reinstall the system, but the CD-ROM drive doesn't work!! I have no choice but to ask you for help! The computer has a floppy drive and USB, and supports booting from floppy. Could one of you give me a detailed installation procedure!! Thanks in advance, little brother here!!!

