Gaming · Platform not recorded
How to Fix Riot Client Not Opening
Source-checked About 10 minutes
Answer
To fix Riot Client not opening, follow the current owner-supported checks below in order. Start with the least destructive action, keep account and save data intact, and verify the result before reinstalling or contacting support.
Record the exact failure
Open Riot Client once and reproduce this issue: Riot Client Not Opening. Note whether it happens before sign-in, during launch, or after a specific action; the exact boundary separates an account or service incident from a damaged local installation.
Check League of Legends Support's current guidance
Open the linked official article and check the product owner's service notices before changing Windows. If the owner reports an incident or maintenance, wait and retest; a reinstall cannot fix a server-side outage.
Restart a clean session
Close Riot Client and its launcher, browser launch tab, or companion software. End only its recognized processes in Task Manager, restart Windows, and reopen it through the official launcher or operating-system control.
Remove optional conflicts
Temporarily close overlays, capture tools, custom launch arguments, VPNs, overclocking utilities, and optional background software. Keep Windows Security enabled and do not download a replacement DLL or unofficial repair tool for Riot Client.
Update Windows and the graphics driver
Open Settings > Windows Update > Check for updates, install supported updates, and restart. For graphics symptoms, install the current driver from the PC or GPU manufacturer's official support page; do not download individual DLL or driver files from repair sites.
Repair before reinstalling
Use the official launcher or Windows Installed apps page to run Repair, Verify, or Reset when that supported control exists. Reinstall Riot Client only after the safer checks, using its official store, launcher, or device-manufacturer package.
Escalate with useful evidence
If the same failure remains, capture its complete message, timestamp, Windows version, Riot Client version or installation type, and the checks already completed. Send those details to League of Legends Support; share diagnostic logs only when the product owner's support team requests them.
Video walkthrough
If it does not work
- If a label differs, update the product and compare the current League of Legends Support article before continuing. Do not guess at hidden files, account links, ports, security controls, or region restrictions.
- If the supported workflow still fails, preserve the full error, timestamp, platform, account region, and completed steps for League of Legends Support instead of repeating destructive resets.
Sources and verification
Checked against official documentation on . Scope: Platform not recorded.
Follow the linked first-party guidance if labels differ after a platform or app update.