League of Legends Patch Guide
League of Legends Update Stuck at 0 B/s or 0%: Patch Loop Fix
Fix League of Legends updates stuck at 0 B/s, 0%, patch loops, repeated update buttons, slow downloads, disk installation pauses, and Riot Client repair failures.
Last updated: July 16, 2026
When a League of Legends update is stuck at 0 B/s or 0%, do not assume the patch is broken immediately. Riot Client can show zero network speed while it is unpacking, verifying, or applying files on disk.
The fastest fix is to separate a real frozen update from a normal installation phase. If disk activity and progress still change, wait and avoid closing the client. If progress, network, and disk activity all stay frozen, check Riot service status, restart the client, free storage, run Full Repair, review security blocks, then test network and reinstall only at the end.
Fastest safe fix order
Check Task Manager disk activity → check Riot service status → fully close Riot Client → restart Windows → free space on both the League install drive and C drive → run Riot Client Full Repair → check Windows Security and antivirus history → test clean boot → compare Ethernet, VPN off, router restart, and DNS cache → reinstall only after these checks fail.
Do not force-close during disk installation
If Riot Client shows 0 B/s but the disk is still active, the patch may be applying files. Force-closing during this phase can make the same patch verify or download again.
Contents
- Tell whether the update is frozen or installing
- Check Riot service status
- Fully close Riot Client and restart
- Check install drive and C drive storage
- Run Riot Client Full Repair
- Check antivirus and Windows Security blocks
- Use clean boot for update conflicts
- Check Ethernet, VPN, router, and DNS cache
- Fix repeated update button or patch loop
- Reinstall League only when needed
- Collect Riot Repair Tool logs
- Frequently asked questions
0 B/s or 0%: Frozen Update or Normal Installation?
The number shown in Riot Client is not the only signal. A League update can stop using network bandwidth after the download finishes, while the disk continues unpacking, verifying, or applying files.
| What you see | Likely state | Best next step |
|---|---|---|
| Speed says 0 B/s, but disk usage changes | Files may be unpacking or installing | Wait and do not close Riot Client |
| Progress, network, and disk all stay frozen | Client, service, storage, or patch issue | Check service status, restart, and storage |
| Same percentage freezes every time | Damaged file, blocked write, or failed verification | Run Full Repair and check security history |
| Update button returns after every launch | Patch loop or incomplete application | Close processes, restart, repair, then test clean boot |
| Other downloads are also slow | Network, router, VPN, or ISP condition | Compare Ethernet, VPN off, and router restart |
| Update finishes, but client becomes black or stuck | Client launch problem, not update download | Use a client stuck-loading guide |
Use Task Manager before restarting
Open Task Manager and compare Riot Client network activity with disk activity. If the disk is still working, the patch may not be frozen.
1. Check Riot Service Status
When many players cannot update at the same time, the issue may be Riot service status rather than your computer. Check the official status page before changing DNS, deleting files, or reinstalling.
- Open Riot Games Service Status.
- Select League of Legends and the correct region.
- Check login, patching, game, and client notices.
- If Riot reports a service issue, wait and avoid local repair attempts.
- If the service is normal and only your PC is affected, continue below.
Server-side problems are not fixed by reinstalling
If the official status page shows an incident, local repairs can waste time and may create new file-verification work after the outage clears.
2. Fully Close Riot Client and Restart Windows
- Open the hidden icons near the Windows clock.
- Right-click Riot Client and exit it.
- Press Ctrl + Shift + Esc.
- End clearly visible Riot Client, RiotClientServices, LeagueClient, and League of Legends processes.
- Do not end unrelated Windows processes.
- Restart Windows from the Start menu.
- Launch Riot Client once after reboot.
- Check whether the update resumes normally.
Leftover processes can repeat the same patch state
A visible window closing does not always close the patch session. Use the system tray and Task Manager before testing again.
3. Check Both the Install Drive and C Drive
League may be installed on a different drive, but Windows temporary files and Riot Client activity can still rely on the system drive. Check both drives.
- Free space on the League of Legends install drive.
- Free space on the C drive.
- Recycle Bin, Downloads, video recordings, and old installers.
- Windows temporary files.
- Cloud sync folders that may be copying large files during the patch.
- Drive health when the disk stays at 100% for a long time.
Do not rely on a single fixed free-space number
Patch size and temporary space can vary. A repair or patch can require more working space than the final update size, so keep comfortable free space on both drives.
4. Run Riot Client Full Repair
Full Repair checks damaged or missing files through Riot Client. Use it before reinstalling the entire game.
- Open Riot Client.
- Sign in.
- Open the profile or settings menu.
- Select League of Legends.
- Choose Repair or Full Repair.
- Keep Riot Client open until the process finishes.
- Restart Windows after repair.
- Start the update again.
Use repair for repeated update buttons
If Riot Client keeps showing the same update button, the previous patch may not have applied correctly. A repair is safer than deleting folders first.
5. Check Antivirus and Windows Security Blocks
Security software can block a newly patched Riot or League file. Do not disable antivirus permanently. Check whether a real block occurred.
- Open Windows Security.
- Go to Virus & threat protection.
- Open Protection history.
- Look for Riot Client, RiotClientServices, LeagueClient, League of Legends, or Riot Games folder entries.
- If using a third-party antivirus, check its quarantine and block history.
- Confirm that any blocked file is actually from the official Riot Games installation path.
- Add an exception only through the security app’s official controls and only for verified Riot files.
- Turn security protection back on after testing.
Avoid unofficial patch files
Do not download third-party patchers, mirrors, or “fixed” executable files. Use Riot Client, official repair, and official download sources only.
6. Use Clean Boot for Update Conflicts
Clean boot helps identify whether another service or startup app is blocking patch files, locking folders, or interfering with Riot Client.
- Take screenshots of enabled startup apps and third-party services.
- Press Windows + R.
- Type msconfig.
- Open the Services tab.
- Select Hide all Microsoft services.
- Disable the remaining third-party services for the test.
- Open Task Manager and disable nonessential startup apps.
- Restart Windows and run the update.
- If the update works, re-enable services in groups until the conflict returns.
- Restore normal startup after troubleshooting.
Common patch-conflict tools
Cloud sync apps, backup tools, antivirus scanners, overlay apps, screen recorders, VPNs, network accelerators, and other game launchers can interfere with patch writing or downloading.
7. Check Ethernet, VPN, Router, and DNS Cache
Network checks should come after confirming the update is not simply installing on disk and after checking local repair and storage.
- Turn off VPNs, proxies, and network acceleration tools.
- Pause other game downloads, cloud uploads, streaming, and Windows updates.
- Restart the modem and router.
- Compare Ethernet instead of Wi-Fi when possible.
- Use a mobile hotspot only as a short comparison test.
- Open Command Prompt as administrator.
- Run ipconfig /flushdns.
- Restart Windows and test Riot Client again.
Public DNS does not guarantee faster patch downloads
DNS mostly affects name resolution. Record your original DNS settings before testing a public DNS, and restore automatic DNS when it does not help.
8. Update Button Keeps Returning or Patch Loop Repeats
A repeated update button often means the patch downloaded but did not apply cleanly, or Riot Client cannot verify a required file.
| Patch-loop sign | Possible cause | Action |
|---|---|---|
| Same patch downloads repeatedly | Failed verification or incomplete install | Restart and run Full Repair |
| Update finishes but Play button never appears | Client session or file state mismatch | Fully close processes and repair |
| Specific percentage always freezes | Blocked file, storage, or corrupt chunk | Check security history and storage |
| Works in clean boot only | Third-party software conflict | Re-enable apps in groups to identify it |
9. Reinstall League Only After Repair Fails
Reinstalling can fix a broken installation, but it should come after status, restart, storage, Full Repair, security, clean boot, and network checks.
- Uninstall League of Legends from Windows Installed apps.
- Exit Riot Client completely.
- Restart Windows.
- Download League only from the official League of Legends download page.
- Install the game.
- Keep Riot Client open until the initial update completes.
- Run Full Repair once after installation if the patch button returns.
Do not delete every Riot folder when other Riot games are installed
VALORANT, TFT, Riot Client data, and logs may share parent folders. Remove League through Windows first and avoid wiping unrelated Riot files.
10. Collect Riot Repair Tool Logs
If the same update keeps failing after repair and reinstall, collect logs before contacting support.
- Date the problem started
- Patch progress percentage where it freezes
- Whether disk activity continues at 0 B/s
- Install drive and C drive free space
- Protection-history or antivirus block entries
- Full Repair result
- Clean boot result
- Network comparison result
- Riot Repair Tool log package
Key takeaway
0 B/s does not always mean League is frozen. Check Task Manager disk activity first. If the update is truly stuck, use the order: service status, process restart, storage, Full Repair, security history, clean boot, network comparison, reinstall, then Riot Repair Tool logs.
Frequently Asked Questions
Does 0 B/s mean the League update is stuck?
Not always. If disk activity or progress changes, Riot Client may be installing or verifying files after the download finishes.
How long should I wait at 0 B/s?
If disk activity continues, wait a few minutes and watch progress. If progress, disk, and network activity all remain unchanged, move to restart and repair steps.
Why does the update button keep returning?
The previous patch may not have applied or verified correctly. Fully close Riot processes, restart, run Full Repair, and check security blocks.
Should I run Riot Client as administrator?
Use it only as a short comparison for write-permission problems. Do not force League of Legends.exe into permanent administrator or compatibility mode for patching.
Will changing DNS fix League update speed?
Not necessarily. DNS can help with address-resolution issues, but it will not repair damaged patch files, storage shortages, or antivirus blocks.
Should I disable antivirus?
Do not leave it disabled. Check protection history first and add an exception only for verified Riot files when a real block occurred.
When should I reinstall League?
After service status, restart, storage, Full Repair, security history, clean boot, and network checks fail. Reinstall from the official League download page only.
Related guides
Official references
