Cannot install First Response - Win8.1 [SCREENSHOTS]

Hey guys, I'm new to this forum, I just finished building my first gaming pc and LCPDFR really caught my attention. I've been trying to install it for 2 days now, I stepped down from trying the auto install, I'm trying to do a manual installation and it seems that I got it right but at the time I go to the setup tool in the LCPDFR folder inside my GTAIV root folder it wont let me run the setup program. Instead it says CONFIGURE OR CHECK YOUR INSTALLATION. 

Here are the screenshots, I hope you guys can see them, by the way whenever I try to open the error log it would crash the diagnostic tool.

edit1: I know it says that I don' have .NET 4.5 but I do, and whenever I go to the website, download it and try to install it shows a message saying that my operating system already runs .NET Is there something I can do to fix it? Thank you all.

http://www.lcpdfr.com/uploads/monthly_11_2014/post-190442-0-85115500-1415087977.pnghttp://www.lcpdfr.com/uploads/monthly_11_2014/post-190442-0-09953500-1415087979.pnghttp://www.lcpdfr.com/uploads/monthly_11_2014/post-190442-0-72367000-1415087980.pnghttp://www.lcpdfr.com/uploads/monthly_11_2014/post-190442-0-11007800-1415087983.pnghttp://www.lcpdfr.com/uploads/monthly_11_2014/post-190442-0-93625200-1415087988.pnghttp://www.lcpdfr.com/uploads/monthly_11_2014/post-190442-0-51078300-1415087975.png

Edited November 4, 201411 yr by MXVZ