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Roblox Repair Tool: Fix White Screen, Crash & Lag (2025)

The #1 free automated utility to fix Roblox Not Launching, Infinite Install Loops, and Error Codes (268, 279) on Windows.

FPS Booster Guide (Low End PC) โ†’

What is the Roblox Repair Tool?

The Roblox Repair Tool is a specialized utility designed to fix common Roblox client errors. It automatically clears corrupted cache files, flushes DNS settings, and resolves the "White Screen" crash and "Infinite Install Loop" issues on Windows PCs. It is safe, open-source, and does not require installation.

One-Click Repair Solutions

The most common Roblox problems and their proven fixes

๐Ÿ–ฅ๏ธ

White Screen / Crash

Roblox shows white screen or crashes on startup without error message.

  1. Delete %localappdata%\Roblox folder
  2. Disable overlay programs (Discord, MSI Afterburner, RTSS)
  3. Disable "Fullscreen optimizations" in compatibility settings
  4. ASUS users: Disable Sonic Studio / Nahimic Service
๐Ÿ”„

Infinite Install Loop

Browser keeps asking to install Roblox even though it's already installed.

  1. Completely close Roblox and browser
  2. Delete %localappdata%\Roblox folder
  3. Run installer as Administrator
  4. Use Revo Uninstaller for clean removal if needed
๐ŸŒ

Connection Errors

Unable to connect to Roblox servers, showing error 279 or 277.

  1. Restart your router/modem
  2. Flush DNS: Run ipconfig /flushdns
  3. Temporarily disable Windows Firewall
  4. Enable UPnP in router settings

Error Code Encyclopedia

Detailed explanations and fixes for common Roblox error codes

Error 268 Unexpected Client Behavior
โ–ผ

What causes this error?

Error 268 is triggered when Roblox's anti-cheat system (Hyperion/Byfron) detects unusual activity. Common causes include:

  • Third-party exploits or cheat programs
  • Outdated FPS unlockers
  • Network instability causing packet loss
  • VPN or proxy interference

How to fix:

  • Remove any third-party Roblox tools
  • Update FPS Unlocker to the latest Byfron-compatible version
  • Run: ipconfig /flushdns
  • Run: netsh winsock reset (requires restart)
  • Disable VPN/Proxy if active
Error 279 Connection Failed
โ–ผ

What causes this error?

Error 279 indicates that your computer cannot establish a connection to Roblox game servers. This is usually a network or firewall issue.

How to fix:

  • Temporarily disable Windows Defender Firewall
  • Add Roblox to firewall exceptions
  • Enable UPnP in your router settings
  • Try a different network (mobile hotspot)
  • Check if antivirus is blocking Roblox
Error 277 Disconnected from Server
โ–ผ

What causes this error?

Error 277 means you lost connection to the game server. This can happen due to internet instability or server-side issues.

How to fix:

  • Check your internet connection stability
  • Use a wired connection instead of WiFi
  • Restart your router
  • Check Roblox Status for server issues

Installer Crashes at 90%? Here's the Fix

Community-tested solutions for "Roblox installer not installing" issue (Windows 10/11)

1

Use RobloxPlayerLauncher (Not Installer!) โญ Most Effective

The official installer often crashes, but the Launcher file works. Here's how to find it:

  1. Press Win+R, type %localappdata% and press Enter
  2. Navigate to Roblox โ†’ Versions โ†’ version-xxxxx (choose the most recent one)
  3. Find and run RobloxPlayerLauncher.exe (NOT RobloxPlayerInstaller.exe!)
  4. Right-click โ†’ Run as Administrator if needed
2

Alternative: Use Bloxstrap (Third-Party Launcher)

If the official installer keeps failing, Bloxstrap is a trusted open-source alternative that many users successfully use:

Download Bloxstrap from GitHub โ†’

3

Microsoft Store Version (Last Resort)

If nothing else works, install Roblox from Microsoft Store. It's the same game, just installed differently:

Open Roblox in Microsoft Store โ†’

4

Complete Clean Reinstall

Before trying again, completely remove all Roblox files:

  1. Delete %localappdata%\Roblox
  2. Delete %temp%\Roblox
  3. Delete C:\Program Files (x86)\Roblox if exists
  4. Empty Recycle Bin
  5. Restart PC
  6. Download fresh installer from roblox.com and run as Admin
5

Pro Tips from the Community

  • Try multiple times: Some users report success after 3-7 install attempts
  • Windows 11 issue: This problem is more common on Windows 11. The Launcher method usually works
  • Install Studio first: If Roblox Studio installs but Player doesn't, use the Launcher file in the Studio's version folder
  • Old installer trick: Some users fixed this by using an older version of the installer from a friend

Step-by-Step Troubleshooting

Follow these detailed steps to fix your Roblox issues

1

Clear Roblox Cache

This fixes most issues by removing corrupted temporary files. Press Win+R and enter:

%localappdata%\Roblox

Delete all contents inside this folder, then reinstall Roblox.

2

Disable Overlay Programs

These programs can cause Roblox to crash or show white screen:

  • Discord Overlay (Settings โ†’ Game Overlay โ†’ Disable)
  • MSI Afterburner + RivaTuner (RTSS)
  • NVIDIA GeForce Experience Overlay
  • Xbox Game Bar (Win+G โ†’ Settings โ†’ Disable)
3

Reset Network Settings

Open Command Prompt as Administrator and run these commands:

ipconfig /flushdns
netsh winsock reset
netsh int ip reset

Restart your computer after running these commands.

4

Check Windows Compatibility

Right-click on RobloxPlayerBeta.exe โ†’ Properties โ†’ Compatibility tab:

  • Check "Disable fullscreen optimizations"
  • Check "Run as administrator"

Video Tutorials

Watch step-by-step guides to fix common Roblox issues

How to Fix Roblox Crashes
Fix Roblox Connection Issues
Complete Roblox Troubleshooting

Download Repair Script

One-click cache cleaner script - Copy, save as .bat file, and run

@echo off
echo ========================================
echo   Roblox Repair Tool - Cache Cleaner
echo   https://robloxrepairtool.com
echo ========================================
echo.

:: Step 1: Clean temporary files
echo [1/4] Cleaning temporary files...
del /q /f /s "%TEMP%\Roblox\*" 2>nul

:: Step 2: Clean local cache (most important)
echo [2/4] Cleaning local Roblox cache...
rmdir /s /q "%LocalAppData%\Roblox\Versions" 2>nul
rmdir /s /q "%LocalAppData%\Roblox\Logs" 2>nul
rmdir /s /q "%LocalAppData%\Roblox\Downloads" 2>nul

:: Step 3: Flush DNS cache
echo [3/4] Flushing DNS cache...
ipconfig /flushdns >nul

:: Step 4: Reset Winsock (network)
echo [4/4] Resetting network settings...
netsh winsock reset >nul

echo.
echo ========================================
echo   Done! Please restart your computer
echo   and reinstall Roblox.
echo ========================================
pause

โš ๏ธ This script only cleans cache files and resets network settings. It does not delete your account data or saved games.

Advanced Tools

Third-party tools that can help enhance your Roblox experience

Bloxstrap

A modern, open-source Roblox bootstrapper with extra features. Trusted by the community and regularly updated.

FFlag Editor
Custom themes
Discord Rich Presence
Fast Flags presets
Multi-instance support
Open source
View on GitHub โ†’