This document explains how to fix Microsoft Windows error 0xc0000018 if it is not working properly or throwing an error while installing, updating or upgrading Windows.

The error message may look like:
– Windows could not search for new updates. An error occurred while checking for new updates for your computer.
– Some updated were not installed. Failed: 76 updates
Error(s) found: Code 0xc0000018 Windows update encountered an unknown error.

This solutions applies for following version of Microsoft Windows:

  • Windows 7
  • Windows 8
  • Windows 8.1
  • Windows 10
Error 0xc0000018 Windows Update Overview
Avg. Time to Resolve Issue   40 mins
Difficulty Very Hard
Log Name: MicrosofWindowsUpdateError9696.log
Source: Service Control manager
Event ID: 8478
Operating System
  • Windows 7
  • Windows 8
  • Windows 8.1
  • Windows 10
Level: Warning
User: Admin
  • Faulting Application Name: Window Update Manager , version: 8.5.0435.34520, time stamp: 0×55722406
  • Faulting module name: Windows  event.dll, version: 8.6.1297.77045
  • Exception code: 0xb05g424d
  • Fault offset: 0xc06d298d
  • Faulting process ID: 0×791
  • Faulting application start time: 0x800d0c00624721
  • Faulting application path: ~<userpath>
  • Faulting module path: ~C:\Windows\System32
  • Report ID: f4f49c15-4419-56e8-6968-5913ggd9e588
Also Known as
  • WindowsUpdate_0x8004fc12
  • 0xc0000018
  • WindowsUpdate_0xc0000018e
  • 0xc0000018e
  • 0x0xc0000018
  • fehler code `, foutcode 0xc0000018, fejlkode 0xc0000018, code d’erreur 0xc0000018, codice di errore 0xc0000018, feil kode 0xc0000018, cod de eroare 0xc0000018, código de error 0xc0000018

Cause of 0xc0000018 Windows Update Error Code

  • Windows Firewall blocking the installation
  • System DLL files conflict

How to Resolve Windows Error 0xc0000018

Step 1: Check if your network is behind Proxy:
1. Hold Win Key + R. Run Dialogue Box will open up.
2. Enter CMD and Click OK.
Office Resolve Error Proxy Check 3. In command Prompt Copy following commands (Simply select the command and press ctrl+c and press ctrl+v in command prompt)

 netsh winhttp show proxy 

Check Proxy Setting

Note: You will need Administrator Access to Run the above command. Simply Right Click on CMD button and select “Run as Administrator

If you get the message “Direct Access (no proxy server)“, continue to the next step otherwise disable proxy from Network Settings.

 You can contact our 24×7 Live support for any help during the whole process. 

Step 2: Disable any installed Antivirus/Malware/Adware Program Temporarily:

Sometimes Antivirus/Malware/Adware programs mark Microsoft Windows installer files as Spam and block it from installing. Please refer your vendor’s website for disabling it temporarily. Once the installation is done you can activate it again.

In most cases Microsoft Windows update error code 0xc0000018 should be resolved by following above steps. If however the issue still persists it means there is some critical issue with your system which needs to be fixed manually and is recommended to be done by an experienced Computer Technician.

You can chat one-on-one with one of our Microsoft Certified Support Representative 24/7 by clicking on the Chat button.

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Last Updated: 25/01/2016
Solution ID: 161999

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  • May 31st, 2016

    Posted In: Microsoft Windows


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