GameLoop Update Failed: Fix "GameLoop Won't Update" Errors (2026)

Estimated search volume: 40,000–80,000/mo | Difficulty: Medium | Intent: Troubleshoot

---

If GameLoop is stuck on "Updating…", showing "Update failed", or keeps restarting into the same update loop — you're not alone. Update errors are GameLoop's second most common crash-adjacent issue, usually caused by firewall blocks, corrupted update caches, or the update server being temporarily down. This guide covers every known fix, ranked by what works most often.

---

What "GameLoop Update Failed" Actually Means

Before fixing it, it helps to know which layer is broken:

---

Fix #1: Restart GameLoop as Administrator (Try This First)

Most update failures happen because GameLoop doesn't have permission to write to its own program folder. This is especially common after Windows Updates change folder permissions.

1. Close GameLoop completely — check Task Manager (Ctrl + Shift + Esc) and end these processes if running:

• GameLoop.exe
• MuMuPlayer.exe
• MuMuVMMHeadless.exe
• TxGameAssistant.exe

1. Find the GameLoop shortcut on your desktop
2. Right-click → Run as administrator
3. Allow the UAC prompt
4. When GameLoop opens, the update should prompt again — let it run

Why this works: GameLoop installs in C:\Program Files\TxGameAssistant\ which requires admin rights to modify. Without elevation, the updater downloads files but fails silently when writing them.

---

Fix #2: Check Your Internet Connection and Disable VPN

GameLoop updates download from Tencent CDN servers. VPNs, proxy settings, or certain ISP restrictions can block these servers even when your browser works fine.

1. Disable VPN completely (not just pause) before updating
2. Disable proxy: Press Win + R → type inetcpl.cpl → Connections tab → LAN settings → uncheck "Use a proxy server"
3. Test with a browser that you can reach gameloop.fun — if you can't, the domain is blocked in your region
4. Try a different DNS: Set your DNS to 8.8.8.8 and 8.8.4.4 (Google) or 1.1.1.1 (Cloudflare):

• Win + R → ncpa.cpl → right-click your network adapter → Properties → Internet Protocol Version 4 (TCP/IPv4) → Properties → enter DNS manually

1. Restart GameLoop after changing DNS

Mobile hotspot test: Try updating on your phone's mobile data hotspot. If the update works there, the issue is your home network/ISP, not GameLoop.

---

Fix #3: Kill Hung GameLoop Update Process

Sometimes the updater launches, appears to run, but silently hangs — the UI shows a spinner but nothing is actually downloading. This is a process deadlock that requires a clean restart.

1. Press Ctrl + Shift + Esc → open Task Manager
2. Go to Details tab (more thorough than Processes)
3. Look for ALL of these and end them:

• GameLoop.exe
• MuMuPlayer.exe (may appear as MuMu Player)
• MuMuVMMHeadless.exe
• MuMuService.exe
• HDAgent.exe
• TxGameAssistant.exe
• TxGameUpdate.exe

1. Open Services (Win + R → services.msc)
2. Look for any service starting with "GameLoop" or "MuMu" — right-click → Stop if running
3. Wait 30 seconds, then relaunch GameLoop as administrator

If the hung process keeps coming back: Open Services, find the GameLoop/MuMu service, double-click → Startup type: Manual → Stop → OK. Then relaunch GameLoop manually.

---

Fix #4: Fix Write Permission on GameLoop Folder

If GameLoop downloads the update successfully but fails at installation, Windows may have blocked write access to the GameLoop program directory.

1. Open File Explorer → navigate to C:\Program Files\TxGameAssistant\
2. Right-click the TxGameAssistant folder → Properties → Security tab
3. Check if your user account (or "Users" group) has Full control or at least Modify permission
4. If not, click Edit → select your user → check Full control → Apply → OK
5. Also check: C:\Users\[YourUsername]\AppData\Roaming\GameLoop\ — same process

Alternative — run the permission fix via Command Prompt (Admin):

icacls "C:\Program Files\TxGameAssistant" /grant Users:F /T

This recursively grants full control to all users on the folder. Relaunch GameLoop after.

---

Fix #5: Whitelist GameLoop in Windows Firewall and Antivirus

Windows Defender Firewall and third-party antivirus software frequently block GameLoop update servers, especially after a Windows Update resets firewall rules.

Windows Defender Firewall:

1. Win + S → search "Allow an app through Windows Firewall" → open it
2. Click Change settings → Allow another app
3. Browse to C:\Program Files\TxGameAssistant\AppMarket\GameLoop.exe → Add
4. Also add C:\Program Files\TxGameAssistant\MuMuPlayer-12.0\launcher\MuMuPlayer.exe
5. Check both Private and Public checkboxes for each
6. Click OK

Windows Defender Antivirus exclusions:

1. Windows Security → Virus & threat protection → Manage settings
2. Scroll to Exclusions → Add or remove exclusions
3. Add folder: C:\Program Files\TxGameAssistant\
4. Add folder: C:\Users\[YourUsername]\AppData\Roaming\GameLoop\

Third-party antivirus (Avast, Malwarebytes, Norton, etc.): Find the exclusions/whitelist section in your antivirus settings and add the same two folders. Every antivirus UI is different — search "[your antivirus name] add exclusion" if you can't find it.

---

Fix #6: Free Up Disk Space and Clear Temp Files

GameLoop updates unpack to a temporary directory before installing. If your system drive (C:\) has less than 5–10 GB free, the update extraction fails.

Check disk space:

1. Open File Explorer → right-click C: drive → Properties
2. If "Free space" is under 5 GB, clear space first

Clear GameLoop temp files:

1. Press Win + R → type %temp% → Enter
2. Select all files (Ctrl + A) → Delete (skip files that say "in use")
3. Also delete from: C:\Windows\Temp\

Clear Windows Update temp files (sometimes conflicts):

net stop wuauserv
rd /s /q %windir%\SoftwareDistribution\Download
net start wuauserv

After clearing space, relaunch GameLoop as administrator.

---

Fix #7: Delete the Update Cache Manually (Fix Update Loop)

If GameLoop keeps downloading the same update and failing, a corrupted update manifest is telling it to re-download files it already has. Deleting the update cache forces a fresh check.

1. Close GameLoop completely (end all processes in Task Manager as described in Fix #3)
2. Navigate to: C:\Users\[YourUsername]\AppData\Roaming\GameLoop\
3. Delete these folders/files if present:

• update\
• cache\
• TxGame_Update\ (or similar)

1. Also check: C:\Program Files\TxGameAssistant\AppMarket\update\
2. Relaunch GameLoop as administrator

Note: AppData is hidden by default. To see it: File Explorer → View → check "Hidden items".

---

Fix #8: Reinstall GameLoop's Update Component

If you've tried all the above and the updater still fails, the update component itself may be corrupted. You can reinstall just the updater without losing your games.

1. Go to C:\Program Files\TxGameAssistant\AppMarket\
2. Look for update.exe, GameLoopSetup.exe, or TxGameUpdate.exe
3. Run it as administrator — it often repairs the update component
4. If there's no standalone updater: download the latest GameLoop installer from the official site (gameloop.fun) — running it over an existing installation repairs/updates without deleting your installed games

Do you lose your downloaded games? Games installed through GameLoop are stored in C:\TxGameDownload\ (or wherever you set your download path). Reinstalling GameLoop does NOT delete this folder, so your games survive a reinstall.

---

Fix #9: Manual Update Using the Offline Installer

If you can't get the online updater to work at all, you can update GameLoop manually:

1. Download the latest full offline installer from gameloop.fun (it's the same installer, just full)
2. Before running it, close GameLoop completely
3. Run the installer as administrator
4. When it detects an existing installation, choose Repair or Update (not Uninstall)
5. The installer will update the application in place

This bypasses the built-in updater entirely and is the most reliable fix for persistent update failures.

---

Fix #10: Check If GameLoop Servers Are Down

Sometimes it's not your setup — Tencent's update servers are temporarily offline. This is most common:

• During major new GameLoop version releases
• During regional outages (Southeast Asia, Middle East) affecting Tencent CDN
• After major game updates (CODM season launches) when everyone updates simultaneously

How to check: Search Twitter/X or Reddit for "GameLoop update not working today" — if hundreds of people report it at the same time, it's a server-side issue. Wait 2–6 hours and try again.

---

Diagnostic Checklist

If you've tried the fixes above and nothing works, gather this info before asking for help:

• [ ] Windows version: Win + R → winver
• [ ] GameLoop version (shown in Settings > About)
• [ ] Error message (exact text or screenshot)
• [ ] Does the update fail immediately, or after a partial download?
• [ ] Does it work on mobile hotspot? (isolates network issue)
• [ ] Is your C: drive above 10 GB free?
• [ ] Running as administrator? (Yes/No)

---

Summary: Fastest Path to Fix

Most users fix it with Fix #1 or Fix #3. If you've been going in circles for more than 20 minutes, skip straight to Fix #9 — the offline installer is the nuclear option that just works.

---

Related guides: GameLoop Not Opening Fix · GameLoop Crashing Fix · GameLoop Download & Install Guide