SkinPack El Capitan
SkinPack El Capitan 2.0 is available as a free download on our software library. This free software was originally created by SKINPACK. The software lies within Desktop Tools, more precisely Themes.
From the developer:
Mac OS X El Capitan SkinPack will transform your Windows 8 and 7 to Mac OS X El Capitan in just a few minutes. The program provides the Mac OS dock, toolbars, finder, sidebar and many widgets, such as weather, calendar, battery life info, and many more.
You may want to check out more software, such as El Capitan Transformation Pack, SkinPack Alienware Evolution or SkinPack AlienBreed, which might be related to SkinPack El Capitan.