Hi,

Try restarting your computer and then verifying the integrity of the game cache for Arma 3.

1. Restart your computer and launch Steam
2. From the Library section, right-click on the game and select Properties from the menu.
3. Select the Local files tab and click the Verify integrity of game cache... button.
4. Steam will verify the game's files - this process may take several minutes.

Try all of the possible solutions listed on the Arma 3 Unusual process exit article on the Bohemia Interactive Community Wiki.

Try switching to and playing on the profiling game branch. After downloading new data verify the integrity of the game cache.

• profiling branch (special performance + profiling build - requires access code: CautionSpecialProfilingAndTestingBranchArma3), alternative download of needed binary possible from Dwarden's dropbox

Try to delete your profile folder (create a backup) a try to start the game.

The file yourprofilename.vars.Arma3Profile must be deleted.
Path: C:\Users\*username*\Documents\Arma 3

The issue has occured in case of your registry libraries (kernelbase.dll) or low video memory space.

KernelBase.dll is external DLL which allow multiple software programs to share the same function. For example, the Windows is launched on your PC and you decide to play Arma 3. DLL is non active until you launch Arma 3 which will be written to your memory.

Errors KernelBase.dll may be associated with damage or outdated of device drivers. Drivers can be one day operate without a problem and the next day not. The good news is that you can always upgrade the device driver to solve the problem DLL.

You can use Windows update tool or GPU driver updater provided by developer. KernelBase.dll is often related with HDD space or another discrepancy there. Sometimes, the culprit is any virus so it´s good to scan whole computer.