Ensure BEService.exe (usually found in C:\Program Files (x86)\Common Files\BattlEye ) is not blocked by your Windows Firewall or antivirus.
Right-click GTA V > Properties > Installed Files > Verify integrity of game files .
Click the three dots on the GTA V tile > Manage > Verify .
If you are trying to play GTA Online and it won't start, follow these verified steps:
FiveM usually disables the standard GTA V anti-cheat components automatically to allow its own modifications to run.