How to Fix Roblox Not Launching on Windows 11: A Step-by-Step Guide

Few things are more frustrating than sitting down to play Roblox and realizing it won’t launch. Whether the app refuses to open, crashes on startup, or freezes mid-load, you’re not alone — it’s a common issue on Windows 11.

In this guide, we’ll walk you through how to fix Roblox not launching on Windows 11 step by step. From adjusting settings to repairing the Roblox installation, every method is explained in simple terms so anyone can follow along.

Table of Contents

🧠 Why Roblox May Not Launch on Windows 11

Before diving into the fixes, it helps to understand what might be going wrong. Roblox can fail to launch due to:

Corrupted Roblox files
Outdated or missing graphics drivers
Windows Defender Firewall or antivirus interference
Browser issues (for Roblox web version)
Cache buildup or temporary file conflicts
Outdated Windows or Roblox version

Identifying the cause will help you apply the right fix faster.

⚙️ Step 1: Restart Your PC

It might sound basic, but a simple restart often clears temporary conflicts that stop Roblox from launching.

Save your work.
Click Start → Power → Restart.
Try opening Roblox again after the reboot.

If the issue persists, move to the next fix.

🧹 Step 2: Clear Roblox Cache Files

Roblox stores temporary cache data that can become corrupted. Clearing it often resolves launch issues.

Here’s how:

Press Windows + R to open the Run dialog.
Type:
```
%localappdata%\Roblox
```
Press Enter.
Delete all files inside the Roblox folder.
Restart your computer and relaunch Roblox.

💡 Tip: Don’t worry — this won’t delete your games or account data, just temporary files.

🔍 Step 3: Run Roblox as Administrator

Running Roblox with admin privileges can bypass permission issues.

Right-click the Roblox Player shortcut or .exe file.
Select Properties → Compatibility tab.
Check Run this program as an administrator.
Click Apply → OK.
Try launching Roblox again.

🧱 Step 4: Disable Antivirus or Firewall Temporarily

Sometimes, security software blocks Roblox from connecting properly.

To disable Windows Defender Firewall:

Press Windows + I to open Settings.
Go to Privacy & Security → Windows Security → Firewall & network protection.
Select your active network and turn Microsoft Defender Firewall off.
Try launching Roblox.

If it works, add Roblox to your firewall’s allowed apps list before re-enabling protection.

🔄 Step 5: Update Roblox

Outdated versions may not be compatible with the latest Windows updates.

Open Microsoft Store.
Click your **Profile → App settings