Can anyone provide the exact location in the System Registry where the Default Programs for File Associations are stored? Case in point, if I would want to know the Default Programs that will open .rtf, .pdf, .txt, .doc, etc. Querying the Registry is not a problem for me. I have looked at various locations and combinations of Keys/SubKeys, but nothing specifically points to the exact location. If I change the Default Program for *.txt from Notepad.exe to Word.exe, I need to see this in the Registry. My Current Platform is Windows 10.