Microsoft Windows Error Code 0x800704CB: How to Fix It

Easy 15-30 minutes Medium Severity Verified June 2026
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Error Code
0x800704CB
Brand
Microsoft Windows
Product Type
hresult
Severity
Medium
DIY Difficulty
Easy
Estimated Fix Time
15-30 minutes
Error code 0x800704CB means that Windows is unable to reach a required UDP port, often due to firewall settings, network issues, or software conflicts. This can prevent apps like Xbox Game Pass or Microsoft Store from working. The following steps will help you resolve the issue.
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Tools You'll Need

How to Fix Error Code 0x800704CB

  1. Restart Your Computer and Network Devices

  2. Check Windows Firewall Settings

  3. Reset Winsock and Flush DNS

  4. Disable Third-Party Antivirus Temporarily

    Only disable antivirus temporarily. Re-enable immediately after testing.

  5. Run Windows Store Apps Troubleshooter

  6. Reinstall the Affected App

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When to Call a Professional

If none of the steps resolve the error, you may have deeper network configuration issues or system file corruption. Contact a professional technician or Microsoft Support.

Frequently Asked Questions

What does error 0x800704CB mean?
It means Windows cannot reach a required UDP port, often due to firewall, antivirus, or network settings blocking communication.
Does error 0x800704CB occur only on Windows 10/11?
This error can occur on any Windows version, but it's most common on Windows 10 and 11, especially with Store apps.
Will resetting Winsock delete my internet settings?
Resetting Winsock restores network settings to default but does not affect your files. You may need to reconfigure some network preferences afterward.
Can I fix error 0x800704CB without admin access?
Most fixes require administrator privileges. If you don't have admin access, contact your system administrator.
Is error 0x800704CB a sign of malware?
Not typically. It's usually a network configuration issue. However, running a full antivirus scan is always a good practice.

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