1) installare
\\fileserver\IT\software\RTC\LyX_Latex_MiKTeX\Altro sw\old version\010_MiKTeX 2.9 Setup FULL\setup-2.9.4389.exe
seguendo i la seguente guida:
2) installare
\\fileserver\IT\software\RTC\LyX_Latex_MiKTeX\01_miktex new version\basic-miktex-2.9.7152-x64.exe
seguendo la seguente guida:
3) installare
\\fileserver\IT\software\RTC\LyX_Latex_MiKTeX\02_LyX\LyX-233-Installer-1.exe
seguento la seguente guida:
last but not least
Copy the files in C:\Program Files (x86)\LyX 2.3\Resources\layouts
Paste the files into C:\Users…\AppData\Roaming\LyX2.3\layouts
in command prompt, run texhash.exe (C:\Program Files (x86)\MikTex 2.9\miktex\bin\texhash.exe)
after that restart the machine
after reboot start Lyx click on Tool–>reconfigure