Microsoft Windows Error Code 0x8024402C: How to Fix It

Medium 30-60 minutes Medium Severity Verified June 2026
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Error Code
0x8024402C
Brand
Microsoft Windows
Product Type
operating_system
Severity
Medium
DIY Difficulty
Medium
Estimated Fix Time
30-60 minutes
Error code 0x8024402C means Windows Update cannot connect to Microsoft's update servers because of a proxy misconfiguration, incorrect network settings, or a broken WSUS (Windows Server Update Services) connection. This is a medium-severity issue that blocks your PC from downloading security patches and feature updates. The good news is that this error is almost always fixable without any hardware changes or professional help.
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Tools You'll Need

How to Fix Error Code 0x8024402C

  1. Run the Built-In Windows Update Troubleshooter

  2. Reset Windows Update Components via Command Prompt

    Only run these commands in an Administrator Command Prompt. Typing them in a standard prompt will fail silently and nothing will be fixed.

  3. Reset Your Internet Proxy Settings

    If your organization requires a specific proxy server to access the internet, resetting the proxy may break your internet connection. Check with your IT department before doing this on a work computer.

  4. Check and Clear Proxy Settings in Internet Options

  5. Flush DNS Cache and Reset TCP/IP Stack

    Running 'ipconfig /release' will temporarily drop your internet connection. This is normal — it will be restored after 'ipconfig /renew'.

  6. Check for Incorrect Registry WSUS Settings

    Back up the registry before making changes. In Registry Editor, go to File > Export and save a copy. Incorrect registry edits can cause Windows instability. If you are not comfortable with this step, skip to Step 7.

  7. Temporarily Disable Third-Party Antivirus or Firewall

    Never leave your antivirus or firewall disabled for longer than necessary. Re-enable it as soon as you have finished testing.

  8. Run System File Checker and DISM Repair

    Do not close the Command Prompt window while these scans are running. Interrupting either scan can leave your system in an inconsistent state.
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When to Call a Professional

Contact your IT department or a professional technician if: (1) Your PC is on a corporate domain and you cannot modify group policy or registry settings yourself, (2) Every fix above has been tried and Windows Update still fails with the same error code, (3) The DISM repair tool reports it cannot fix corruption even with internet access, or (4) Your PC starts experiencing additional instability, blue screens, or boot failures after registry edits. A qualified Windows technician can use advanced tools like the Windows Update Diagnostic tool, Group Policy Editor (gpedit.msc), or a Windows repair installation to resolve deep system corruption.

Frequently Asked Questions

What causes Windows Update error 0x8024402C?
This error is caused by Windows being unable to reach Microsoft's update servers. The most common reasons are: a misconfigured proxy server, leftover WSUS (corporate update server) settings in the registry, a firewall or antivirus blocking the connection, corrupted Windows Update service files, or a general network misconfiguration. It is very common on PCs that were previously connected to a company or school domain.
Will error 0x8024402C go away on its own?
No — this error will not resolve itself because it stems from a configuration or connectivity issue on your specific PC. Microsoft's servers are working fine; the problem is on your end. You need to take at least one of the manual steps above (resetting the proxy or clearing WSUS registry entries) to permanently resolve it.
Is it safe to edit the registry to fix this error?
Yes, if you follow the instructions carefully and back up the registry first. The specific key you are changing (UseWUServer and related WSUS entries) controls only how Windows finds update servers — it does not affect core system operations. Always export a backup via Registry Editor > File > Export before making any changes, so you can restore it if anything goes wrong.
I ran 'netsh winhttp reset proxy' but the error came back. Why?
The most likely reason is a conflicting proxy setting in Internet Options (inetcpl.cpl > Connections > LAN settings) or a registry-based WSUS configuration that is overriding the proxy reset. The netsh command resets the WinHTTP proxy layer, but Group Policy or registry settings can push the proxy back. Work through Steps 4 and 6 in the guide to address those sources.
Can a VPN cause error 0x8024402C?
Yes. Some VPN clients route all traffic — including Windows Update — through a VPN tunnel that either blocks Microsoft's update servers or applies its own proxy settings. If you have a VPN installed, try disconnecting from it completely and then running Windows Update. If the error disappears with the VPN off, contact your VPN provider or IT administrator about adding Microsoft Update URLs to the VPN split-tunnel exclusion list.

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