Also found you can do the same through the registry:

To accomplish this via the Registry:

Open Regedit.exe and navigate to:
HKEY_CLASSES_ROOT\Folder\shell

In the right pane, set the value of (default) to "explore" (without quotes)
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-D Modifying and Tweaking is a journey, not a destination................................ MKIIa : 60gig - 040103286 - Blue - v2 + PCATS tuner MKIIa : 20gig - 040103260 - Blue - v3a8 + Mark Lord Special Edition Cherry Dock