CDRW/DVD and Floppy disk are not working at all

Hello. My CDRW and Floppy are not working. They are recognized however on the “DEVICE MANAGER” but are shown with an exclamation “!”. The hardware is:
“LG CD-RW CED8080B” but the floppy only appears as “Standard Floppy disk controller”. I tried downloading the driver for the CDRW from the internet but it didn’t work, and on that installation I overwrote the CDROM.sys file in system32. I am stuck with no cd drive or floppy. Thank you very much for your help.
–>OS: Windows XP Professional

Try System Restore to restore to recent date when everything was okay…