Registry invalid message errors are not seen as much these days as they were a few years ago.  Usually a “registry Invalid” is the result of an entry made into the registry that is not compatible with that registry. 

Because today’s versions of “Control Panel” in Windows interfaces operate so accurately and error free a ”registry invalid has become somewhat rare. 

The two ways this type of message will be seen in computers using Windows XP and newer are: 

1. An errant entry was added to the registry using the Windows built in registry editor “regedit.”
2. A program or device driver that didn’t match the operating system was installed.  For instance, a  software program that is compatible with Windows ME was installed on a computer using Windows XP.

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