What do you do if the DVD drive in your PC or laptop simply stops working? This was the problem faced by one of our readers. When he wrote in our Helproom Editor explained what to do when Windows Explorer says your PC's DVD drive has been changed or moved.

QUESTION The two DVD drives on my XP PC have stopped working. Windows Explorer tells me that the drive has been changed or moved and the shortcut no longer works. I have tried uninstalling and reinstalling the drivers, and System Restore fixes the problem only until the next reboot. Please help.

HELPROOM ANSWER This problem can occur when an installation of DVD-burning software goes wrong. It can usually be fixed with a Registry edit or by using one of Microsoft's ‘Fix It' automated troubleshooting services.

The Fix It for this problem can be found on this web page: http://support.microsoft.com/kb/314060. This page also details how to manually resolve the problem by editing the Registry.

To do this, you must open the Start menu and type regedit into the Search bar, then double-click the Regedit icon to launch the Registry Editor. Search for Hkey_Local_Machine\System\CurrentControlSet\Control\Class\{4D36E965-E325-11CE-BFC1-08002BE10318}. Delete the entries for ‘UpperFilters' and ‘LowerFilters' in the right pane. Exit Regedit and reboot the PC.

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DVD drives