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Carles, when Windows asked you "No se pudo comprobar el editor.
¿Está seguro de que desea ejecutar este software?", what did you
answer ?<br>
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<p>I found on the internet a screenshot of TeXworks editor
running on Windows 7 (see attached photo), so I should have no
trouble with the operating system. I also disabled my Avast
antivirus, but I am not able to open .tex files or TeXworks
editor.<br>
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<div class="moz-signature">-- <br>
<img src="cid:part1.00040704.07080001@Rhul.Ac.Uk"><br>
Philip Taylor</div>
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