This tweak will add an extra option "Show / Hide Checkbox" in Desktop and Explorer context menu (menu which appears when you right-click) in Windows Vista and 7.
It'll help you in easily turn "Use checkbox to select items" option On or Off within a single click.
Simply download ZIP file, extract it and run the "Install.exe" file.
It'll automatically install the required files and will ask you to add the option into Windows Registry, accept the confirmation by clicking on "Yes" button and then OK.
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They are my Space Marines and they shall know no fear.
I just reinstalled 7 and forgot about it and went crazy of the checkboxes
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See my gallery: [link]