I did try launch sc2 directly without internet but no luck
i use Microsoft Security essential on both pc , but 1 pc sc2 is working another pc not working
EDIT : When i Run SC2Switcher.exe on this pc it just start sc2 but on another pc it show this error :
ok, good screenshot, from that, the files are all ok, still some questions.
first, you said you tried run sc2 directly, what happened? it run well?
and second, can you try to move both "SF_Folder" and "SC2_Folder" out of "C:\Program Files (x86)" to some other place such as "D:\"? because "C:\Program Files (x86)" need some extra right to access.
and about the last warning error, can you copy your "sc2_folder\Support\fmodex_4_28_08.dll" to him to try? i do not know why his file not work. i never meet that error warning.