These are the reliable general fixes for BattlEye launch failures that do not show a specific code, including the launcher stuck at Starting BattlEye Service. Work through them in order, or jump to your situation below.
Not every BattlEye problem has a specific code. The launcher can hang at Starting BattlEye Service, report the client is not responding, or fail to launch with a generic message or an Exception Processing Message 0xc0000135. These share a short checklist of fixes. First, verify or validate your game files in Steam or the Epic launcher, because all the latest BattlEye files ship with the game and this restores any that are missing or outdated. Then add BattlEye to your antivirus exceptions (BEService.exe/BEService_x64.exe and the BattlEye folder) and close unnecessary background apps that could interfere. Run the game's BattlEye launcher (the _BE executable) as administrator, and if it still fails, delete the BattlEye Service directory so it rebuilds cleanly. For the 0xc0000135 exception specifically, reinstall the game and the Visual C++ runtimes, since it points to missing runtime files. Working through these clears the majority of unlabelled BattlEye launch problems.
BattlEye starts its service and client at launch, using files that ship with the game. A hang at Starting BattlEye Service, a client-not-responding message, or a generic failure means that start-up could not complete, usually from missing or outdated BattlEye files, antivirus interference, or missing runtimes.
A short checklist resolves most of these: verify the game files so BattlEye is current, add antivirus exceptions, run the BattlEye launcher as administrator, and delete the BattlEye folder to force a clean rebuild. The 0xc0000135 exception is a missing-runtime problem fixed by reinstalling the game and Visual C++.
“When BattlEye just hangs on Starting BattlEye Service or throws a vague error, I run the same checklist. Verify the game files first, because the latest BattlEye ships with the game and a verify fixes most of it. Add BattlEye to the antivirus exceptions and close background clutter. Run the game's _BE launcher as admin. If it is still stuck, delete the BattlEye folder so it rebuilds clean. And the 0xc0000135 exception is its own thing, that is missing Visual C++ runtimes, so reinstall the game and the runtimes.”
BEService.exe/BEService_x64.exe and the BattlEye folder to your antivirus exceptions.C:\Program Files (x86)\Common Files\BattlEye to force a clean rebuild.For general BattlEye launch failures, including stuck at Starting BattlEye Service and client not responding: verify or validate the game files, add BattlEye to antivirus exceptions and close background apps, run the game's _BE launcher as administrator, and delete the BattlEye Service directory to rebuild it. For a 0xc0000135 exception, reinstall the game and Visual C++ runtimes.
If BattlEye still will not start after verifying files, exceptions, admin and a folder rebuild, scan for malware and check for a corrupted Windows service configuration with sfc /scannow; a repair reinstall of Windows is BattlEye's own suggested last resort. You can also submit your error to us for a tailored fix.