any latex code I want to view in TexWorks 0.4.5 r.1280 (Miktex 2.9) won't show the syntax highlighting. It compiles just fine but everything line is written in black. On very long documents the highlighting shows for several seconds then the program freezes for short and the highlighting disappears again. Windows compatibility modes did not improve the situation. Does anyone have an idea what's going wrong here?

  • When the situation is, like you tell it in your comment to Harish's answer, then it is very probably an OS related issue and therefore off-topic on this site.
    – Speravir
    Feb 7, 2014 at 20:40

1 Answer 1


Go to FormatSyntax Coloring. In the list that appears, most probably you have None selected. Select LaTeX as in the following screen shot:

enter image description here


  • Thank you, but as I said, its does not work. I know how to switch it on. But that has no effects. Did you use win 8.1 for the screenshot?
    – harald01
    Feb 7, 2014 at 18:07
  • It did work for me on both Windows 8.0 and 8.1. (I'm using TeX Live distribution though, which I highly recommend.)
    – Vochmelka
    Feb 8, 2014 at 17:28

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