If the League of Legends client or game window turns black, the first thing Riot's support docs recommend is to restart Riot Client, confirm it has fully updated, and restart your PC; for a screen that goes black at launch, the next step is updating your graphics card driver. No Riot support article dedicated only to a black client was found, so this guide does not guess at a single root cause and instead follows the symptom-based order in the official documents. It covers the client and launch screen on a Windows PC, not performance tuning like League of Legends FPS boost settings and not a black screen that shows up while recording. Everything reflects the official pages as checked on September 30, 2026.
Symptoms, the matching official document, and the first move
| Symptom | Matching official document | First thing to try |
|---|---|---|
| Screen goes black when the game launches | Troubleshoot PC Game Crashes | Follow the official 8 steps in order and pay special attention to the graphics driver update |
| Riot Client opens but the game never appears | Riot Client FAQ | Restart Riot Client, confirm it fully updated, restart the PC, launch again from Riot Client |
| System Error or Critical Error at launch | Troubleshooting Game Launching Errors | Delete the AppData cache, clean boot, firewall exceptions, driver update, reinstall |
| Loading screen never starts after champion select | League of Legends Not Launching After Champion Selection | Clean boot, add security software exceptions, update drivers, run Repair |
| Client suddenly disappears after login | Client disappears (older guidance still on the support site) | Run the shortcut as administrator, sync the Windows clock, check firewall effects |
| The full repair tool itself fails | Full Client Repair Failed | Restart and retry, use a wired connection, check for 8GB or more free disk space |
The short answer and when to contact Riot
Here is the short version. The official docs put Riot Client restart, a check that Riot Client has fully updated, and a PC restart first, then point to a graphics driver update when the screen goes black at launch. Since 2026, every Riot PC game launches through Riot Client, so starting from a desktop shortcut opens the game page inside Riot Client first, and that is normal. Launch failures, blank screens and repeated launch attempts are not expected behavior, and Riot asks you to contact Player Support about them. If the client opens fine and the problem is delay, lowering your LoL ping is the better fit.
Step-by-step fixes in order
- 1Restart Riot Client, check updates, restart the PC — Close Riot Client completely, open it again, and confirm the update finished. Then restart your PC and launch the game from Riot Client. A restart closes temporary processes and clears memory so the game starts from a clean state, which is why the official guides put it near the front. Check whether the problem is gone before moving on, because that keeps the cause easier to narrow down.
- 2Update your graphics card driver — Press Windows key+R, type dxdiag and press Enter. On the Display tab for your primary display, read the card name and manufacturer under Device. Then use the automatic detection tool from AMD, NVIDIA or Intel to update the driver and restart. Riot's guide says outdated graphics drivers can cause crashes, freezes and black screens, so this is the step to watch most closely if your screen goes black.
- 3Update Windows and confirm minimum requirements — Install pending Windows updates and restart. The first of Riot's 8 steps is checking minimum system requirements, so open the League of Legends minimum and recommended requirements page on Riot's support site and confirm directly that your operating system version and storage space fit. Those figures can be revised, so they are not copied into this guide; the official page is the source to trust.
- 4Run the Riot Client full repair tool — Sign in to Riot Client, open the Profile Icon at the top right, choose Settings, select the game, and click Repair, then follow the prompts. The tool restores missing or corrupted files. If the repair itself fails, restart the PC and try again, use a wired connection if you can, confirm at least 8GB of free disk space, check Task Manager for leftover League processes, and make sure League is not running under another Windows user. Riot's guide then points to chkdsk for the drive and Windows Memory Diagnostic for RAM.
- 5Use a clean boot to separate the cause — Press Windows key+R, run msconfig, open the Services tab, and make sure Hide all Microsoft services is checked before you click Disable All. Find vgc in the list and tick it again, click Apply and OK, then restart. This is a test state to see whether another program is involved. Security software such as antivirus can stay active in this state, so the next step may still be needed.
- 6Add security software exceptions and check compatibility mode — Riot's document for a loading screen that never starts after champion select tells you to add these files as exceptions in your security software: LeagueClient.exe, LeagueClientUx.exe, LeagueClientUxRenderer.exe, League of Legends.exe, RiotClientServices.exe, vgc.exe and vgm.exe. Disable third-party antivirus only briefly as a test, and read Riot's connection troubleshooting guide before touching the firewall. The same document says to right-click the game exe, open Properties, and turn compatibility mode off. The older client-disappears guide instead suggests Run as Administrator on the shortcut and syncing the Windows clock with Update now.
- 7Lower video settings, then reinstall as the last resort — If the game screen appears even briefly, open Settings through the gear icon, drop video settings to the lowest level, and raise them gradually. Resetting NVIDIA Control Panel or AMD Software to defaults is also part of the official 8 steps because they can override game settings. If nothing changes, reinstall the game; the launch-failure guide also says to uninstall and reinstall Vanguard and restart the PC. If you see Something unusual happened, Riot has a separate document that includes registry editing, so read it before touching any values.
Checklist if it is still not fixed
- Restart Riot Client and confirm the update finished.
- Update the graphics card driver with the manufacturer's tool and restart the PC.
- Run the full repair tool, and if it fails, check for 8GB or more of free space and leftover League processes.
- See whether the symptom persists in a clean boot, and disable security software only briefly as a test.
- If any error code or message appears, search that exact text on Riot's support site first.
- Gather a video or screenshots of the symptom, the error code and logs, then contact Player Support with Submit A Ticket.
Documenting the symptom, and recording after the fix
Everything above is Riot-side troubleshooting, and DOR does not fix a black screen. Still, a phone video or screenshots of how the symptom unfolds make it easier to explain to Player Support. DOR only works once the game runs normally, so its real use comes after the fix, when the library trim lets you cut just the scene you want and share it as a dor.gg link. For League of Legends, DOR is a free Windows app that records full matches to mp4 automatically and cuts kills into automatic highlight clips. On an NVIDIA card you just updated the driver for, NVENC hardware encoding is the default, and game sound and microphone are captured together, so your own mic audio from the first match after the restart is kept as well. The setup is covered in how to record League of Legends.
Official sources (checked September 30, 2026)
This guide follows Riot's support pages as checked on September 30, 2026. The black screen symptom and the 8 steps come from Troubleshoot PC Game Crashes, written on October 28, 2025. Repair steps come from the Riot Client Full Repair Tool page, and the launch order from the Riot Client FAQ. The documents on launching errors, loading after champion select, client disappearing, failed repairs and minimum requirements were also consulted, but only these three are linked. Support pages can change, so read the original before you act.
