VALORANT on Windows 11 depends on Riot Vanguard and Windows security requirements that include TPM 2.0 and Secure Boot on supported Windows 11 systems. If the game refuses to launch, read the exact Vanguard or VALORANT error before changing firmware settings.
Troubleshoot VALORANT on Windows 11
- Restart the PC to make sure Riot Vanguard and pending Windows changes have loaded correctly.
- Open Windows Update and install current supported Windows updates.
- Check System Information for BIOS Mode and Secure Boot State.
- Run
tpm.mscand confirm that TPM is available and reports the required specification version. - If Secure Boot or TPM is disabled, follow the PC or motherboard manufacturer’s firmware instructions to enable the supported feature.
- Repair or reinstall Riot Vanguard/VALORANT from Riot’s official software if the security requirements are already satisfied but the client remains damaged.
Do not change firmware blindly
Turning on Secure Boot can require a correctly configured UEFI/GPT Windows installation. Do not simply disable Legacy/CSM mode on an older configuration without confirming that Windows can boot in UEFI mode. Have the BitLocker recovery key available before firmware security changes.
A Vanguard error is useful evidence
Different error codes can point to services, account/session problems, platform security, networking, or corrupted software. Search Riot’s current support documentation for the exact code rather than applying unrelated fixes.
Avoid cheats and modified clients
Third-party cheats, patched clients, and “Vanguard bypass” tools can create account, security, and malware risks. Use Riot’s official client and support process. If the hardware does not properly support Windows 11’s required security configuration, fixing the platform is preferable to bypassing it.
If the error began immediately after a Riot or Windows update, check Riot’s current service/support notices before repeatedly reinstalling the game. A widespread issue cannot be fixed by changing local firmware settings.
Kermit Matthews is a freelance writer based in Philadelphia, Pennsylvania with more than a decade of experience writing technology guides. He has a Bachelor’s and Master’s degree in Computer Science and has spent much of his professional career in IT management.
He specializes in writing content about iPhones, Android devices, Microsoft Office, and many other popular applications and devices.