7 min read
Few things are more frustrating than sitting down for a competitive session only to find that your game simply refuses to launch. Whether you are clicking the ‘Play’ button and nothing happens, or the Riot Client hangs indefinitely, the issue of Valorant not opening is a common hurdle for many players. Because Valorant relies on a deep-level kernel driver called Riot Vanguard, the causes can range from simple software glitches to complex BIOS settings.
- Basic Initial Checks
- Troubleshooting Riot Vanguard
- Administrative Privileges and Compatibility
- Updating Drivers and Software
- Advanced Windows and BIOS Settings
- The Clean Reinstallation Process
Basic Initial Checks
Before diving into complex registry edits or BIOS changes, it is essential to rule out the simple culprits. Often, a background process has crashed or a temporary system glitch is preventing the Riot Client from initiating the game executable.
First, perform a full system restart. This is not just a ‘Shut Down’ (which in Windows 10/11 often uses Fast Startup and doesn’t fully clear the kernel), but a genuine Restart. This forces Riot Vanguard to reload its drivers from scratch. While you are at it, check your system resources via the Task Manager (Ctrl + Shift + Esc) to ensure no ghost instances of Valorant are already running in the background, which would block a new session from starting. Many users find that optimizing their general gaming environment and ensuring a stable performance profile helps prevent these launch hangs.
Troubleshooting Riot Vanguard
The most frequent cause of launch failures is Riot Vanguard. Since Vanguard is an anti-cheat system that starts at boot, any corruption in its files or a conflict with other drivers will prevent Valorant from opening to maintain competitive integrity.
Restarting the Vanguard Service
Sometimes the Vanguard service fails to trigger. You can check this by looking for the red Riot Vanguard icon in your system tray. If it is missing, the game will not launch. You can try manually starting the service via services.msc, searching for ‘vgc’, and ensuring the Startup Type is set to Automatic.
Reinstalling Vanguard
If the service is running but the game still won’t open, a clean reinstall of the anti-cheat is the best move. Go to ‘Add or Remove Programs’, uninstall Riot Vanguard (do not uninstall the whole game yet), and then restart your PC. Upon rebooting, launch the Riot Client, which will detect that Vanguard is missing and prompt you to reinstall it. This often fixes corrupted driver signatures that prevent the game from booting.
Administrative Privileges and Compatibility
Windows security permissions can sometimes block the game from accessing necessary folders or executing the .exe file. Giving the application higher priority can bypass these restrictions.
Running as Administrator
Navigate to the folder where Valorant is installed (usually C:\\Riot Games\\VALORANT\\live). Right-click on the VALORANT.exe file, select ‘Properties’, go to the ‘Compatibility’ tab, and check the box for ‘Run this program as an administrator’. Do the same for the Riot Client executable. This ensures the game has the necessary permissions to communicate with the kernel-level anti-cheat.
Compatibility Mode
While Valorant is designed for modern Windows versions, some system updates cause instability. In the same ‘Compatibility’ tab mentioned above, try running the program in compatibility mode for Windows 8. While rare for this specific title, it can resolve conflicts with certain legacy Windows API calls on updated systems.
Updating Drivers and Software
Outdated hardware drivers can lead to a ‘silent crash’ where the game attempts to initialize the graphics engine, fails, and closes before any window ever appears on your screen.
GPU Driver Updates
Ensure your NVIDIA, AMD, or Intel drivers are fully up to date. Use the official software (GeForce Experience or Adrenalin) to check for updates. A ‘Clean Installation’ of drivers—removing old ones via DDU (Display Driver Uninstaller)—is highly recommended if you have recently switched graphics cards.
Overlays and Third-Party Software
Certain overlays can conflict with the game’s fullscreen mode. Try disabling Discord Overlay, Steam Overlay, or MSI Afterburner. Additionally, some aggressive antivirus software may flag the Vanguard driver as a false positive. Add the Riot Games folder to your antivirus exclusion list to ensure the scanner isn’t killing the process during launch.
Advanced Windows and BIOS Settings
For users on Windows 11, the requirements for Valorant are more stringent due to the integration of TPM 2.0 and Secure Boot. If these are disabled in your BIOS, the game will either not open or throw a ‘VAN 9001’ error.
Enabling TPM 2.0 and Secure Boot
Restart your PC and enter the BIOS/UEFI (usually by pressing Del, F2, or F12 during startup). Look for the ‘Security’ or ‘Boot’ tab. Ensure Secure Boot is enabled and TPM 2.0 (sometimes called PTT on Intel or fTPM on AMD) is turned on. Without these, Windows 11 cannot verify the integrity of the boot process, and Vanguard will block the game from launching.
Windows Update and DirectX
Make sure your OS is fully patched. Go to Settings > Windows Update and install all pending updates. Additionally, ensure your DirectX runtime is updated. While Windows Update usually handles this, manually installing the DirectX End-User Runtime can resolve missing .dll errors that prevent the game from initializing.
The Clean Reinstallation Process
If all else fails, a complete wipe of the game and its associated clients is necessary. A standard uninstall often leaves behind cached files that may contain the very bug you are trying to fix.
1. Uninstall Riot Vanguard first via the Control Panel.
2. Uninstall VALORANT and the Riot Client.
3. Manually delete the C:\\Riot Games folder.
4. Press Win+R, type %localappdata%, and delete the Riot Games folder.
5. Restart your computer.
6. Download a fresh installer from the official website and reinstall.
Conclusion
Fixing Valorant when it won’t open usually comes down to resolving a conflict between Riot Vanguard and your system’s security settings. From simple restarts and admin privileges to the more technical TPM 2.0 requirements on Windows 11, following a systematic approach ensures you find the root cause. By keeping your drivers updated and ensuring a clean environment free of conflicting overlays, you can get back into the match quickly.
Frequently Asked Questions
Why does Valorant not open after a Windows update?
Windows updates can sometimes reset BIOS settings or conflict with the Vanguard driver. Try restarting your PC or reinstalling Vanguard to resync the driver with the new OS build.
Can a slow hard drive prevent Valorant from launching?
While a slow HDD won’t usually stop the game from opening entirely, it can cause the Riot Client to time out. Moving the game to an SSD is highly recommended for faster load times and better stability.
What does it mean when the Riot Client says ‘Starting’ but the game never opens?
This usually indicates a conflict with a background application or a failure in the Vanguard service. Check Task Manager to kill any hanging Valorant processes and ensure ‘vgc’ is running in Services.
Do I need to disable my firewall for Valorant to work?
You should not disable your firewall entirely, as this is a security risk. Instead, add VALORANT.exe and RiotClientServices.exe as exceptions in your firewall settings.
Will reinstalling Windows fix my Valorant launch issues?
As a last resort, yes. A clean Windows installation removes all software conflicts and registry errors. However, try the BIOS and Vanguard steps first, as they resolve 99% of launch issues.