Labrys Inno installer package can be easily (Uni)extracted and its FAQ declares it doesn't change any system files. It depends on MS VC 2013 runtimes (included) and it saves settings to '%APPDATA%\Labrys' folder -- mainly configuration ('Configuration.dcn') and command history ('History.dcn') files.
http://vtt.to/labrys wrote:Labrys is a replacement for Windows Start menu and Run dialog. [...] Unlike many other Start menu enchantment applications Labrys does not mimic layout or visual appearance of Start menus existing prior to Windows 8. Instead Labrys uses fresh approaches to provide rapid access to applications and command-line utilities with keyboard, mouse and touch.
Download Labrys latest release (currently v1.0.4) from http://vtt.to/labrys.