Encountering Windows System Error Code ERROR_73 can be frustrating, especially if you’re unsure what caused it or how to resolve it. This error commonly indicates a problem related to connection or network settings, and it might disrupt your workflow or system functionality. Don’t worry — in this detailed, step-by-step guide, I’ll walk you through everything you need to know to fix this issue quickly and effectively.
What is Windows System Error Code ERROR_73?
Before diving into the fix, let’s understand what ERROR_73 means. Windows defines ERROR_73 (73) as:
“The network connection was gracefully closed.”
In simple terms, this error often shows up when a network connection or communication between your computer and another device (like a server, printer, or network share) is prematurely terminated. This can happen for a variety of reasons including misconfigured network settings, security software interference, or corrupted system files.
Why Does ERROR_73 Occur?
Some common causes include:
- Network connectivity issues (e.g., unstable Wi-Fi or LAN)
- Firewall or antivirus blocking connections
- Misconfigured network shares or permissions
- Corrupted system files or outdated network drivers
- VPN or proxy server conflicts
Understanding these helps us troubleshoot effectively.
How to Fix Windows System Error Code ERROR_73: Step-by-Step
Step 1: Restart Your Computer and Network Devices
Before anything complex, try the simplest solution:
- Restart your PC to clear any temporary glitches.
- Restart your router/modem to reset network connections.
- If connected via Ethernet, unplug and re-plug the cable.
This can often resolve transient network issues causing ERROR_73.
Step 2: Check Your Network Connection
Verify that your internet or local network connection is stable:
- Open Settings > Network & Internet.
- Run the Network troubleshooter to detect and fix problems automatically.
- Try pinging a reliable IP address (e.g., 8.8.8.8) using Command Prompt:
- Press
Win + R, typecmd, and hit Enter. - Type:
ping 8.8.8.8and press Enter. - If the ping fails, your connection might be unstable.
- Press
Step 3: Disable Firewall and Antivirus Temporarily
Sometimes, security software mistakenly blocks legit connections:
- Open your firewall or antivirus settings.
- Temporarily disable the firewall or antivirus protection.
- Try the action that caused ERROR_73 again.
If the error disappears, the security software might need adjustment:
- Add exceptions for the affected applications or network ports.
- Re-enable your firewall/antivirus afterward to keep your PC protected.
Step 4: Reset Network Settings
Resetting network settings can fix misconfigured or corrupted settings:
- Open Settings > Network & Internet > Status.
- Scroll down and click Network reset.
- Confirm and restart your computer.
Note: This will remove all network adapters and set them to default. You will have to reconnect to Wi-Fi networks again.
Step 5: Update or Reinstall Network Drivers
Outdated or corrupted drivers can cause connection issues:
- Press
Win + Xand select Device Manager. - Expand Network adapters.
- Right-click your network device and select Update driver.
- Choose Search automatically for updated driver software.
If updating doesn’t help:
- Right-click and select Uninstall device.
- Restart your PC to let Windows reinstall the driver automatically.
Step 6: Check Network Share and Permissions
If ERROR_73 occurs when accessing a network share or printer:
- Verify the shared resource is online and accessible on the network.
- Check permissions on the shared folder or device. Ensure your user account has access rights.
- Try accessing the share using the IP address instead of hostname (e.g.,
\\192.168.1.100\sharedfolder).
Step 7: Disable VPN or Proxy Services
VPNs and proxy servers can interfere with network communication:
- Temporarily disable any VPN services you’re using.
- Turn off proxy server settings from Settings > Network & Internet > Proxy.
- Test if ERROR_73 persists after disabling these services.
Step 8: Run System File Checker (SFC)
Corrupted system files might be behind the error:
- Open Command Prompt as administrator (
Win + X > Command Prompt (Admin)). - Type
sfc /scannowand press Enter. - Wait for the process to complete and fix any detected issues.
- Restart your PC and check if the error is resolved.
Final Thoughts: Keeping Your Windows Network Healthy
Encountering ERROR_73 can feel like a roadblock, but with the steps above, you’re equipped to troubleshoot and fix it calmly and confidently. Remember to keep your system, drivers, and security software up-to-date to minimize future issues. And if you ever feel stuck, the Windows community forums and official Microsoft support are valuable resources.
If this guide helped you fix ERROR_73, I’d love to hear your success story or any additional tips you have—drop a comment below! And don’t forget to share this guide with others who might benefit.
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Thanks for reading, and happy troubleshooting!
