How to Fix Valorant’s “Game Requires Restart” / “System Reboot Required” Error
Valorant may ask for a restart but still fail to launch — here’s a clear, tested checklist to fix it and get back to playing fast.
What the error means (simple)
When Valorant displays the message “Your Game Requires a system Restart to play. Please restart your computer.” it usually indicates a problem with the game environment rather than the game itself. The message is straightforward — but restarting the PC often doesn’t solve the problem. Below are the most common causes and practical fixes you can do right away.
Common causes
- Corrupted game files — updates or partial installs can damage files.
- PC software glitches — background services, Windows settings or other apps conflict with Valorant.
- Riot Vanguard (VGC) not running — the anti-cheat is required for Valorant to start.
- Outdated or faulty drivers — especially GPU drivers.
- Compatibility issues — older Windows versions or missing system updates.
Step-by-step fixes (fastest to thorough)
Fix 1 — Reboot (the safe first step)
Yes — restart your PC once. If the error persists, continue with the steps below. Always try the quick step first so you rule out transient issues.
Fix 2 — Run Valorant as Administrator
- Press the Windows key and search for Valorant.
- Right-click → Open file location. Right-click the shortcut → Properties.
- Compatibility tab → check Run this program as an administrator → Apply → OK.
This ensures the game has the permissions it needs to run and talk to the Vanguard service.
Fix 3 — Disable Fullscreen Optimizations
On the same Compatibility tab, tick Disable fullscreen optimizations. Some Windows fullscreen optimization features interfere with anti-cheat or game startup.
Fix 4 — Make Riot Vanguard (VGC) automatic
- Press Win + R, type
msconfig, press Enter → Services tab. - Make sure VGC is checked (enabled). Click Apply.
- Then press Win + R → type
services.msc→ find vgc (Riot Vanguard). - Right-click → Properties → set Startup type to Automatic. Apply and restart the PC.
Vanguard runs at boot — if it’s disabled, Valorant will not start.
Fix 5 — Update or reinstall drivers
Especially update your GPU drivers (NVIDIA / AMD / Intel). Use the official drivers page or your GPU control panel to update. Restart after installing drivers.
Fix 6 — Repair/Verify game files & reinstall
If problems persist, uninstall Valorant and Vanguard then reinstall fresh from the official Riot website. Reinstalling replaces any corrupted files and re-registers Vanguard correctly.
Extra troubleshooting (if the error still appears)
- Check Windows Update: install the latest cumulative updates.
- Run a virus scan — malware can prevent Vanguard from running.
- Temporarily disable other overlay apps (Discord overlay, FPS counters, recording tools) — these sometimes conflict with Vanguard.
- Try a clean boot to identify software conflicts (use
msconfig→ selective startup).
Pros & Cons — Quick summary
Good: Most fixes are simple (reboot, admin mode, enable VGC). Reinstall usually resolves deep file corruption.
Downsides: Reinstalling takes time; some users may need to reconfigure settings. If Vanguard conflicts with security software, it may require extra steps.
Is this article AdSense-friendly?
Yes. This post is informational, step-by-step, and helps users solve a technical error. To further improve AdSense friendliness:
- Add at least one in-article screenshot per major step (VGC settings, Services window, Properties dialog).
- Add internal links to related posts (e.g., “Best GPU settings for Valorant”, “How to update drivers”).
- Keep the content original and avoid copying other guides word-for-word.
FAQ — Quick answers
Q: Will reinstalling Valorant delete my settings?
A: Most settings are stored in the cloud or in your Riot account. Back up any local configs if you are unsure.
Q: Why does Vanguard need to run at boot?
A: Vanguard is a kernel-level anti-cheat that must be active to detect cheats before the game starts.
Conclusion — What to try first
Start with the quick steps (restart, run as admin, check VGC). If the issue persists, update drivers and reinstall the game & Vanguard. These steps solve the error for 95% of users. If nothing helps, contact Riot Support with a screenshot and a description of steps you've already tried.
If you want, paste your Valorant error screenshot in the comments or contact page and I’ll help you diagnose the exact problem.