I have an Acer F1 machine with XP Pro operating system and combined CD burner/DVD reader. Everything worked just fine but suddenly when inserting removable media (3.5" floppies, CD Roms, DVDs) they are not recognised. On inserting media the floppy drive reports disks as not being formatted and the optical drive whirrs for a few seconds but nothing else happens when recorded CDs and DVDs are inserted, nothing there to open or explore. These drives show-up on 'My Computer' and 'Device Manager' reports both are functioning correctly. Any help would be appreciated.
A series of System Restores (back to 01 Feb '05) had everything working again but updating Windows using the Express application of Critical Security Patches knocked it all back to square one again. I guess that I need to download and apply these patches one-by-one to determine which is causing the problem.