Valorant Couldn’t Install a Required Dependency: Complete Fix Guide

The “Valorant couldn’t install a required dependency” error usually appears when Riot Vanguard, Windows components, or a related game file cannot install correctly. This guide explains the most reliable fixes, from restarting required services to reinstalling Vanguard and checking Windows security settings.

What Causes the “Valorant Couldn’t Install a Required Dependency” Error?

VALORANT depends on Riot Vanguard, its kernel-level anti-cheat system, to launch successfully. If Vanguard is missing, damaged, blocked, or unable to start, the Riot Client may display this dependency error.

Common causes include:

• A failed or interrupted VALORANT installation
• Vanguard files that are corrupted or incomplete
• Windows updates that are missing
• Antivirus or firewall software blocking Riot installers
• Disabled Windows services
• Incorrect permissions for the Riot Client
• Outdated Microsoft Visual C++ components
• Secure Boot or TPM configuration problems on some Windows 11 PCs
• Installing the game to a restricted or unusual folder

Before changing advanced settings, restart your computer and try launching VALORANT again. Vanguard often requires a full restart after installation or an update.

Quick Fixes to Try First

Start with these simple solutions before reinstalling anything.

Run the Riot Client as administrator

1. Close VALORANT and the Riot Client completely.
2. Open the Start menu and search for Riot Client.
3. Right-click it and select Run as administrator.
4. Try launching VALORANT.

Administrator access can allow the installer to create services and write files that Windows previously blocked.

Install all Windows updates

Open Settings > Windows Update and select Check for updates. Install available updates, including optional driver or security updates when appropriate. Restart your computer after the installation finishes.

An outdated Windows build can prevent Vanguard or Microsoft runtime components from working properly.

Temporarily check security software

Third-party antivirus programs, firewall tools, and endpoint security applications can block Vanguard. Temporarily pause third-party protection only if you understand the risks, then test the installation.

Do not leave security software disabled permanently. Instead, add official Riot and VALORANT folders to its allowlist if that resolves the issue. Never download a supposed “Vanguard fix” from an unofficial website.

Check available storage

Make sure your Windows drive has free space. Even if VALORANT itself is already installed, updates and dependencies need temporary storage. Free several gigabytes, then restart the Riot Client.

Reinstall Riot Vanguard Safely

If the quick fixes do not work, reinstalling Vanguard is often the most effective solution.

1. Close the Riot Client and VALORANT.
2. Open Settings > Apps > Installed apps.
3. Find Riot Vanguard, select the menu beside it, and choose Uninstall.
4. Restart your computer.
5. Open the Riot Client and launch VALORANT.
6. Allow Vanguard to install when prompted.
7. Restart your computer again.

The second restart is important because Vanguard installs a Windows service that must load during startup.

If Riot Vanguard does not appear in the installed-apps list, you can use an elevated Command Prompt:

1. Search for Command Prompt.
2. Right-click it and select Run as administrator.
3. Enter these commands separately:

``text sc delete vgc sc delete vgk ``

1. Restart Windows.
2. Delete the C:\Program Files\Riot Vanguard folder if it still exists.
3. Launch VALORANT to reinstall Vanguard.

Only delete the Vanguard folder, not unrelated Windows or Riot directories. If the commands report that a service does not exist, continue with the restart and reinstall steps.

Repair Windows Components and Check Vanguard Services

A damaged Windows system file or disabled Vanguard service can also cause the dependency message.

Repair system files

Open Command Prompt as administrator and run:

``text DISM /Online /Cleanup-Image /RestoreHealth ``

When it finishes, run:

``text sfc /scannow ``

These tools can repair Windows component and system-file problems. Restart your PC after both commands complete, then test VALORANT.

Confirm the Vanguard service is running

Press Windows + R, type services.msc, and press Enter. Find the service named vgc. Open it and set:

• Startup type: Automatic
• Service status: Running

If the service will not start, reinstall Vanguard again and check whether your antivirus or security policy is blocking it.

You can also try a clean boot to identify software conflicts. A clean boot starts Windows with nonessential startup programs disabled. If VALORANT works in that state, re-enable programs gradually to find the application interfering with Vanguard.

Advanced Windows 11 Checks

Windows 11 may require additional security features for Vanguard, especially after hardware or BIOS changes. Riot may display a different error code when these features are missing, but they can still be relevant when troubleshooting installation problems.

Check Secure Boot

Press Windows + R, type msinfo32, and press Enter. Look for:

• BIOS Mode: Ideally UEFI
• Secure Boot State: On

If Secure Boot is disabled, enable it in your motherboard’s UEFI/BIOS settings. The exact menu names vary by manufacturer. Do not change BIOS settings casually, particularly if your system uses Legacy boot mode or disk encryption.

Check TPM 2.0

Press Windows + R, type tpm.msc, and press Enter. The window should indicate that a compatible TPM is ready for use. Windows 11 normally requires TPM 2.0.

If TPM is unavailable, it may be disabled in UEFI under a name such as Intel PTT or AMD fTPM. Consult your motherboard or laptop manufacturer’s instructions before changing this setting.

If the error started after a BIOS update, hardware upgrade, or Windows reset, these security settings deserve special attention.

FAQ

Why does VALORANT need Vanguard?

Vanguard is Riot Games’ anti-cheat system. Its driver and services run with Windows so they can detect certain cheats before the game starts. Because it works at a low system level, it requires installation permission and a restart.

Will reinstalling VALORANT fix the dependency error?

It can, but reinstalling the entire game is not always necessary. Reinstall Riot Vanguard first, because it is the most common missing dependency. If that fails, repair or reinstall the Riot Client and VALORANT from Riot’s official website.

Is it safe to disable Secure Boot to play VALORANT?

Disabling Secure Boot is generally not recommended on Windows 11 systems that require it for Vanguard. Check Riot’s current requirements and your specific error code before changing BIOS settings. If Secure Boot is already enabled, look for corrupted Vanguard files, Windows issues, or software conflicts instead.

The “Valorant couldn’t install a required dependency” error is usually fixed by updating Windows, reinstalling Riot Vanguard, repairing system files, or allowing the Riot Client to run with administrator permissions. Start with the simple fixes, restart after Vanguard changes, and use only official Riot downloads and support resources.

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