# TeXStudio could not start command (ProTeXt)

I am running Windows 7 and I have installed the ProTeXt package. I am using MiKTeX and TeXstudio however my TeXstudio seems not to work as I get the following error message:

Error: Could not start the command: "texstudio_Hp6136".ps


This is all of my text in my file:

\documentclass[12]{article}
\begin{document}
Blah
\end{document}


Then I hit F1 (Quick Build) and I actually tried all the other buttons for latex and DVI and pdflatex.

What is/could be wrong with TeXstudio?

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Welcome to TeX.SE! Have you tried running pdflatex myfile.tex from the command line? A minor point- dfrac will need the amsmath or mathtools package to be loaded... – cmhughes Sep 27 '12 at 3:51
I edited my post. It does not matter what I put in my document. – CodeKingPlusPlus Sep 27 '12 at 4:52
Please, post an image showing your Options>Configure>Commands window from TeXstudio. Probably you have to setup the right path for the executable files. – Sigur Oct 14 '12 at 13:38