This error is more than likely just a missing C/C++ runtime (MSVCR100.dll). Both of the tidy.dll files included in this plugin are dependent on the MS Visual C/C++ 2010 runtime. Which Microsoft stopped shipping by default with Windows 10. Yay! Many programs might install it along the way, but sometimes a Windows 10 machine can avoid getting it installed altogether if older programs are never installed on it.
The handy-dandy Windows OS error stating that win32/tidy.dll could not be found is actually the same exact error you get when a
dependency of win32/tidy.dll cannot be found (in this case: MSVCR100.dll). Handy, I know.
Make sure you get the x86 version of the redistributable runtime for Visual Studio 2010:
https://support.microsoft.com/en-us/...f-95f26a218cc0 and you should be up and running.
Or even more directly:
https://www.microsoft.com/en-us/down....aspx?id=26999