
Note: If you get some error by MiKTeX regarding SOMETHING.sty, close LyX and in the Windows application finder search MiKTeX Package Manager and run it as Admin. In my case LuaTeX generate larger document than XeTeX but both are nicer than those generated by ps2pdf.
LYX WINDOWS PDF
To export to PDF you can user File > Export and then select PDF LuaTeX or PDF XeTeX. If you’re a beginner or you want to jog your memory about LyX select Help > Tutorial. Now you can enjoy LyX for Windows to create PDF using LaTeX without having to deal with the usual formatting hassles of a WYSIWYG editor. Windows OS is unable to locate the default uninstaller of the program.

After the update close the MiKTeX popup and wait to LyX installation to finish: it should take minutes, to see progress click “See details” so you can see it’s not hanged up but it’s simply fetching different templates you can use later. LyX was not properly or completely installed previously.You should get an Update popup for MiKTeX, check the connection settings and then proceed and click Next to update all packages.


