The file inside the is named, to allow you to vew its contents once you download the file via Notepad.exe, and if you choose to import it, just remove the. If you are not comfortable with regedit, you can download the attached file, which contains a reg file that will delete and then re=create the ContextMenuHandlers key, and force Windows back to its defaults. Alternately you can also just create a System Restore Point, and if needed use it to restore the settings. In the event that it does not resolve the problem, or you would like to revert the changes for any reason, you can just double click on the saved. reg file a name and save it somewhere easy to find.
NOTE: Before deleting any registry keys, I would recommend that you first highlight the ContextMenuHandlers key, and then from the File menu, select Export, give the exported. If you are comfortable with using Window's Regedit, you might try carefully navigating to the registry shown key below, and then delete all the subkeys ( they look like folders) beneath \ContextMenuHandlers It is probably some corrupt Context Menu item that is causing the right click to not work.