Installation issue

when i download black desert private server when its complete and i try to launch the game it says “the specified executable is not a valid application for the OS platform,the application is terminating” what do i do to fix this?

 

I believe that while downloading the game, the executable files became corrupted due to one of many reasosns.
Such as MITM (man-in-the-middle) caused by programs like antivirus softwares or any web proxy that could cause the downloaded file to become corrupted.

To troubleshoot and verify that this is your issue, visit OnlineMD5 and compare the MD5 hashes of the following files:
* Black Desert Online\bin\BlackDesert32.exe (772DDBE94555B1EAC913605AF67085F2)
* Black Desert Online\bin64\BlackDesert64.exe (C2F475E6861AD683418B2B6A6F8EFA59)
* C:\Program Files (x86)\GamezBD Launcher\GamezBDO.exe (4F8223C8D20D77E23F0D653310B1C720)

To check the hashes, drag and drop the executables into the upper box:


If the hashes are not identical to the ones I have provided, they got corrupted.