Buyer beware, there is a serious configuration issue with the CD/DVD models. Dell is aware of this issue and hides it from unsuspecting consumers. The lovely cyberlink software takes over the file associations for system files (boot, network connections etc) and your Mcafee virus scanner/firewall etc. Performed a recovery on the hours old computer from the recovery partition and the issue persists. Looked online and there are other unsuspecting people looking up this very issue with the file associations on Dell computers. A Windows default file association reset does not fix this.Their cure is to tell people to go online with the inadequate and possibly malfunctioning Windows firewall, a malfunctioning virus scanner, messed up network connection and messed up general Windows file associations to download Mcafee fresh. Is this system even safe to take online?Sure this is a temp and insecure fix for Mcafee, but what about the system files? .dat is used by Windows and many programs.The fix as far as I can see is to uninstall all Dell provided cyberlink software, and to delete the affected root file associations in the registry. This software deletion removes any enjoyable CD/DVD capabilities. (Support said I could go buy a new program in the Windows store.) Then downloading a new Mcafee, then running DISM restore in a Windows power script. You need to do this for every user. But is this even enough?If you ever have to add another user in the future, rinse and repeat.A brand new system and the Windows event viewer logs are writing a novel. What a mess, and will my perceived cure even be adequate? I suspect I would be researching and fixing error messages in the logs for a looong timeThis is a very serious issue, and returning the computer is likely the only remedy since they NEVER FIXED THIS.This horrid software config is being installed on countless computers. Unbelievable!