This document explains how to fix Microsoft Windows error 80200560 or 0x80200560  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 updates were not installed. Failed: 78 – Updates KB3000850, KB890830, KB308033
Error(s) found: Code 8020056 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 8020056 Windows Update Overview
Avg. Time to Resolve Issue   30 mins
Difficulty Hard
Log Name: MicrosofWindowsUpdateError5046.log
Source: Device-manager
Event ID: 4889
Operating System
  • Windows 7
  • Windows 8
  • Windows 8.1
  • Windows 10
Level: System Error
User: User
  • Faulting Application Name: Window Update Manager , version: 7.8.4711.46508, time stamp: 0×20162258
  • Faulting module name: Windows  error.dll, version: 6.3.0012.49317
  • Exception code: 0xa05d250b
  • Fault offset: 0xc04c025e
  • Faulting process ID: 0×749
  • Faulting application start time: 0x800a4f50861619
  • Faulting application path: ~<userpath>
  • Faulting module path: ~C:\Windows\System32
  • Report ID: a6e53g23-5845-43c5-1718-8843dge6a675
Also Known as
  • WindowsUpdate_8020056
  • 8020056
  • WindowsUpdate_8020056e
  • 8020056e
  • 0x8020056
  • fehler code 8020056, foutcode 8020056, fejlkode 8020056, code d’erreur 8020056, codice di errore 8020056, feil kode 8020056, cod de eroare 8020056, código de error 8020056

Cause of 8020056 Windows Update Error Code

  • Port Blocked
  • Temporary store location is infected with active malware

How to Resolve Windows Error Code 8020056

Step 1: Temporarily Disable any installed 3rd Party Antivirus

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

Step 2: Check Windows Firewall

1. In Start Search box type Firewall.cpl
Open Windows Firewall2. Click on Windows Firewall.
3. Click on “Turn Windows Firewall On or Off
Turn Windows Firewall on or off4. In Private network Setting, select “Turn off Windows firewall (not recommended)
5. Do the same for Public Network Setting.
Disable Windows Firewall6. Press OK.
Note: After the issue is resolved you must turn the Windows Firewall on.

In most cases Microsoft Windows update error 8020056 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: 08/02/2016
Solution ID: 927154

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  • April 13th, 2016

    Posted In: Microsoft Windows

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