This document explains how to fix Microsoft Office Error code 771 if it is not working correctly or throwing an unexpected error while installing/activating office. This solutions applies for Office Home, Office Personal, Office University, Office Academy, Office for business, Office Professional, Office Professional Plus, Office 365, Office 2013, Office 2010 and Office 2016. The error code 771 generally occurs while installing Office, Upgrading office, Opening Office, launching Office, removing/uninstalling Microsoft office or while applying windows updates. This error applies to all Microsoft office Products (Word, Excel, PowerPoint, Outlook, OneNote, Access, Project, Publisher, Visio, Infopath) and the error generally occurs in Windows 10, Windows 8, Windows 8.1, Windows 7, Windows Vista, Windows XP and other Microsoft Windows Editions.

Error InformationError Descripton
771 Error Code Overview
771 Error Code Log
Avg. Time to Resolve Issue   45 mins
Difficulty Critical
Log Name: Microsoft Office <version> 4.00
Source: Incompatible System Files
Event ID: 5758
Task Category: (134)
Level: Application Level
User: <Windows username>
  • Faulting application name: Microsoft Office <Application name>, version: 9.0.8255.81242, time stamp: 0×52688224
  • Faulting module name: Office event.dll, version: 6.9.0281.90757, time stamp: 0×78067452, time stamp: 0×84309053
  • Exception code: 0xa02d561g
  • Fault offset: 0xe01d962d
  • Faulting process ID: 0×653
  • Faulting application start time: 0x15dcbf8g52358433
  • Faulting application path: ~<userpath>
  • Faulting module path: ~C:\Program Files (x86)\Microsoft Office\<appname>
  • Report ID: a9a96e43-8842-29a7-1485-2222dgb8e233
Table of contents

Symptoms of Error Code

  • You will get an Error Message while opening/installing Ms Office. The error may look like “Sorry, we couldn’t set up Office.
    Error code: 771
    Correlation ID: {8FB82FDB-5D00-42C7-854E-9DF745B4EE63}
  • Slows down overall system performance
  • Ms Office Application Will Stop.

Cause of 771 Error Code

  • Corrupt System Files
  • Internet connectivity issue
  • Temporary Internet store location contains active malware

How to Resolve Error Code 771

The steps given below should be followed under strict supervision of a Computer Expert. We are not responsible if anything goes wrong with your PC following the steps. All the steps given above are indicative and should resolve the problem in most cases.  You can contact our 24×7 technical support for guaranteed resolution of the issue.
Step 1 Remove Temporary internet Files

1. Goto Control Panel and type “Disk Cleanup” in search box.
2. Select Disk Cleanup .

Step Fix 7713. Drive Selection Box will open up. Select your Operating System drive and Click OK.
Select Drive for Diskcleanup4. Select all the check boxes and press OK.

Tick All Boxes and Press OK

Step 2 Check for system corruption:
1. Hold 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 “system” 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 support for any help during the whole process. 

Step 3 Disable any installed Antivirus/Malware/Adware Program Temporarily:
Some times Antivirus/Malware/Adware programs mark Microsoft office 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.

In most cases error code 771 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 Technical Support Representative 24/7 by clicking on the Chat button.

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Last Updated: 05/02/2016
Solution ID: 369882


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  • February 27th, 2016

    Posted In: Microsoft Office Errors

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