Miscellaneous User Experience Tweaks

Just a collection:

Remove New > Briefcase context menu:
Delete HKEY_CLASSES_ROOT\Briefcase\ShellNew key

Remove New > Shortcut context menu:
Delete HKEY_CLASSES_ROOT\.lnk\ShellNew key

Remove New > Bitmap context menu:
Delete HKEY_CLASSES_ROOT\.bmp\ShellNew key

Remove New > Compressed (zipped) Folder context menu:
Delete HKEY_CLASSES_ROOT\.zip\CompressedFolder\ShellNew key

Remove New > Contact context menu:
Delete HKEY_CLASSES_ROOT\.contact\ShellNew key

Remove New > Folder context menu:
Delete HKEY_CLASSES_ROOT\Directory\Background\shellex\ContextMenuHandlers\New key
Delete HKEY_CLASSES_ROOT\Folder\ShellNew key

Remove New > Journal Document context menu:
Delete HKEY_CLASSES_ROOT\.jnt\jntfile\ShellNew key

Remove New > Library context menu:
Delete HKEY_CLASSES_ROOT\.library-ms\ShellNew key

Remove New > Rich Text Document context menu:
Delete HKEY_CLASSES_ROOT\.rtf\ShellNew key

Remove New > Text Document context menu:
Delete HKEY_CLASSES_ROOT\.txt\ShellNew key

Remove Shared Folder Synchronization Context menu:

Delete or rename HKEY_CLASSES_ROOT\CLSID\{6C467336-8281-4E60-8204-430CED96822D}

Tips

Menu items related to individual objects tend to be located in either or a combination of the following areas:

HKCR\*\shell
HKCR\*\shellex\ContextMenuHandlers
HKCR\AllFileSystemObjects\shell
HKCR\AllFileSystemObjects\shellex\ContextMenuHandlers

Downloads and Utilities

NirSoft ShellExView (Download): Enables/Disables Shell Extensions.
NirSoft ShellMenuNew (Download): Enables/Disables items in the New context menu.
NirSoft FileTypesMan: Modify actions for a given file type.
NirSoft OpenWithView: Modify "Open With" actions.