If you're using Vista or Windows 7 or 8, then click this. - If you have Zonealarm on your system, ensure Anydvd is being given permission to access the trusted zone. - Similarly if you have a firewall, antivirus or spyware program--ensure it's not blocking Anydvd from running. - If you have System Mechanic, System Mechanic Pro, or any kind of registry monitoring program, please ensure these programs are allowing Anydvd's installation program to modify your registry--as those programs can block Anydvd from installing properly. If Anydvd says your drive is disabled, ignore the message unless you also receive it when you have a movie inserted in that drive. Some drives' firmware may report the wrong information to Anydvd. Often Anydvd will still function properly. visit http://forum.slysoft.com/showpost.php?p=2891&postcount=12 (Zebadee's Anydvd works fine) If Anydvd can't see your drives or they aren't listed, LEFT click the red fox icon in the system tray to the lower right of your screen. - Navigate to "Drives"-->"Selection". - Ensure your optical drives are checkmarked. - Right click the Anydvd icon on your desktop. Click "properties". Click the "Compatibility tab". If you're using Windows XP, ensure the box for "compatibility mode" is not selected. - Teatimer enabled on Spybot can cause problems during installation: visit http://forum.slysoft.com/showpost.php?p=36804&postcount=5 1. Exit out of all Slysoft programs and reinstall a) Keep your license key file backed up safely b) Uninstall Anydvd (start-->all programs-->Slysoft--->Anydvd-->Uninstall) c) Reboot d) Download Anydvd http://static.slysoft.com/SetupAnyDVD.exe e) Exit all Slysoft programs (including Anydvd, Clonedvd2, Clonecd, Clonecdtray, Clonedvdmobile, etc.). Check Windows Task Manager if you have to. f) At this point disable your antivirus and firewall programs g) Reinstall h) Reboot i) Install your license key (if required) http://forum.slysoft.com/showthread.php?t=732 j) At this point enable your antivirus and firewall programs If that doesn't work go on to step 2. 2. Read http://forum.slysoft.com/showthread.php?t=1307 fully 3. i. For XP with ide burners Ensure you have the correct BusMaster drivers installed. Best is to select the default drivers from Windows in "Device Manager" Do what it says to do if you have XP and an ide burner/optical drive. ii. For Vista or Windows 7 or 8 with ide burners Go into device manager, and check to ensure you're using standard Microsoft ide busmaster drivers. Right click on your PCI IDE Bus Master controller, and remove it. Ensure that it also removes the driver for your DVD/CD rom. Reboot. Your system should find hardware. After your system is finished installing hardware, reboot again. click http://forum.slysoft.com/showpost.php?p=48880&postcount=20 to get a better idea of what I'm asking for if you're using Vista/W7. If you have one installed, the pci ide bus master controller may be failing. This is a known issue.