How to Fix Windows Update Error 8024402C

Windows Update is essential for your PC to function properly. For this reason, an update error can be a big problem. Windows Update error 8024402c is one of the most common ways a Windows Update problem appears.

It will appear on your computer screen as the following message:

Windows was unable to check for new updates.
An error occurred when searching for your computer.
Found the error:
Code 8024402C Windows Update Center found an unknown error.

What Causes Windows Update Error 8024402c

This error occurs when Windows Update is unable to connect to Microsoft’s update servers. If you are using Windows Update or a scheduled update is running and you do not have an Internet connection or this connection is blocked, there is a high chance that you will see error 8024402c.

There are many reasons why a computer cannot connect. Then there are more technical reasons that are more difficult to pinpoint.

The trick is to find out who it is. These four are the most common technical causes for error 8024402c.

Reset the proxy settings

This solution can be very useful because it is easy to do and can solve the problem by resetting your computer’s proxy server settings that have been damaged since the last update. Follow the instructions below to solve the problem.

Use Windows + X to open a menu where you need to select the command line (administrator) option. You can also right-click on the Start menu for the same effect or just find the command line, right-click and select “Run as administrator”.

Type in the commands listed below and press Enter after each command to execute it correctly.

  • network
  • broken
  • Reset Proxy

Go back to the Windows Update Center and see if the problem persists on your computer.

Run Windows Update Troubleshooter

  1. Run the Windows Update troubleshooter.
  2. Accept the license agreement on the first screen.
  3. Click Detect Issues and apply the fixes (recommended).
  4. Wait while the program finds and fixes problems with Windows Update.
  5. Restart your computer and see if error code 8024402C disappears.

Change your DNS address

If your ISP does cause these problems, other solutions may be useless as they cannot resolve the fact that your current DNS address is simply incompatible with Microsoft servers. Fortunately, changing your DNS address is very easy if you follow these instructions carefully. You can just interrupt the process if something goes wrong.

  • Open the Run dialog by simultaneously pressing the keys with the Windows + R logo. Then type “ncpa.cpl” and press “OK”.
  • When the Internet connection window opens, double-click the active network card.
  • Then click on “Properties” and double-click on “Internet Protocol Version 4 (TCP / IPv4)”.
  • Search Use the following option for DNS server addresses.
  • Set the preferred DNS server to 8.8.8.8.
  • Set the alternative DNS server to 8.8.4.4.

Turn off the antivirus software

Temporary disconnect the security software and see if the problem persists.

a: click the Windows + Q logo to open the search box.

b: Now click “Settings”, go to Support Center and press Enter.

c: Click on the chevron next to “Security”.

d: Disable any anti-virus protection installed on your computer.

Warning: Antivirus software may protect your computer from viruses and other security threats. In most cases, you should not turn off your antivirus software. If you need to temporarily turn it off to install other software, you should turn it back on when you are done. If you are connected to the Internet or network with antivirus software turned off, your computer is vulnerable to attack.

Use Regedit

This process requires modifying your registry, which can be very useful but also dangerous. It is recommended that you close all running programs before proceeding with this solution. It is recommended that you back up your registry in case something goes wrong during editing.

  • Open the Run dialog box by pressing the Windows logo key + R keys at the same time. Then type regedit and click OK. Click Yes when prompted for User Account Control.
  • In the Registry Editor window, navigate to HKEY_LOCAL_MACHINE >> SOFTWARE >> Policies >> Microsoft >> Windows >> WindowsUpdate >> AU.
  • In the right pane of the AU button, double-click UseWUServer, change the data value to 0, and click OK.

If you cannot find WindowsUpdate, you need to create it. Follow the instructions below.

  • Right-click the Windows folder, then choose New> Key and name the new key WindowsUpdate.
  • Right click on the Windows Update folder then select New >> Key and name the new key AU.
  • Right-click on the right side of the AU button and select New >> DWORD (32-bit) Value. Name the new value UseWUServer. Set the value to 0.
  • Now try installing Windows updates.