This document explains how to fix Microsoft Windows error code 8004FF80 or 0x8004FF80 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: 94 updates – KB2691905, KB2804527
Error(s) found: Code 8004FF80 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 8004FF80 Windows Update Overview
Avg. Time to Resolve Issue   50 mins
Difficulty Very Hard
Log Name: MicrosofWindowsUpdateError6883.log
Source: System
Event ID: 3540
Operating System
  • Windows 7
  • Windows 8
  • Windows 8.1
  • Windows 10
Level: Warning
User: System
Description:
  • Faulting Application Name: Window Update Manager , version: 1.9.6086.28273, time stamp: 0×94024776
  • Faulting module name: Windows  event.dll, version: 7.9.6310.39227
  • Exception code: 0xb03d047b
  • Fault offset: 0xb08b207c
  • Faulting process ID: 0×154
  • Faulting application start time: 0x800e6c93444839
  • Faulting application path: ~<userpath>
  • Faulting module path: ~C:\Windows\System32
  • Report ID: a4a71a77-3618-52b5-1957-6666ffa4a941
Also Known as
  • WindowsUpdate_8004ff80
  • 8004FF80
  • WindowsUpdate_8004FF80e
  • 8004FF80e
  • 0x8004FF80
  • fehler code 8004FF80, foutcode 8004FF80, fejlkode 8004FF80, code d’erreur 8004FF80, codice di errore 8004FF80, feil kode 8004FF80, cod de eroare 8004FF80, código de error 8004FF80

Cause of 8004FF80 Windows Update Error Code

  • Incompatible Internet proxy configuration
  • Temp store location contains active malware

Steps to resolve Windows Error 8004FF80

Step 1: Check Proxy Server Settings

1. Hold Win Key + R and Enter CMD
2. Hit Enter key
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 import proxy source=ie 

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: Check for system corruption
1. Press Windows Key + R. Run Dialogue Box will open up.
2. Type CMD and Press OK.
open command prompt3. In command Prompt Copy following commands (Simply select the command and hold Ctrl+C and press Ctrl+V in command prompt)

 sfc /scannow 

sfc scannow
The system will take some time to check. Let it run for a while. If it finds any issues in “os” integrity it will automatically fix it.

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

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

In most cases Microsoft Windows update error code 8004FF80 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: 25/02/2016
Solution ID: 931122

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    April 13th, 2016

    Posted In: Microsoft Windows

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