Hi, i did install 4.6.1, and no luck, so i removed arma 3 laucher folder, i did check integrity from steam to reinstall the launcher and no luck again.

for the second post, i do not have any error message, it 's like if arma is launching and the just close, no warming, nothing. When i launch the game from steam, i can see just beside arma3 ( game launch ) for 3 to 4 sec, then it's replace by synchronization for 1 sec and then nothing....

this is what i found in log event:

• System
  • Provider [ Name] Application Error
  • EventID 1000 [ Qualifiers] 0 Level 2 Task 100 Keywords 0x80000000000000
  • TimeCreated [ SystemTime] 2016-02-02T02:53:49.830599500Z EventRecordID 2625 Channel Application Computer Dom-PC Security

• EventData arma3launcher.exe 1.3.133.746 56712463 clr.dll 4.6.1063.1 5653653c c00000fd 00428282 192c 01d15d64f10034be C:\Program Files (x86)\Steam\steamapps\common\Arma 3\arma3launcher.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\clr.dll 8f4ba3da-5694-4c9b-a81b-0f84e1a57a76

any news .... update ??

i did reinstall .net framework 4.5, ..... same thing, arma is not lauching with the laucher, still have to use the arma3battleye.exe method.

i did remove all arma 3, so wich library are you talking about ??