0x80071a91 Office 365

0x80071a91 Error Code Office 365 Information
Difficulty LevelHigh
Resolution:DLL Issue
Cause:File Corruption
Affected Operating Systems
  • Windows 8/8.1
  • Windows 7
  • Windows 10
  • Windows Vista

How To Fix 0x80071a91 Error Code in Office 365

Repair Difficulty : Medium

Step 1: Disable Windows Firewall

For Microsoft Windows 7 and later

1) Press “Win + R” and Type “Firewall.cpl” and Press Enter.
Office Error Code 0x80071a91 Office 365 img7
2) Windows Firewall Window will Open.
3) Click On “Turn Windows Firewall on or off”
Office Error Code 0x80071a91 Office 365 img7
Warning: You will need Administrator rights to enable or disable firewall.
Office Error Code 0x80071a91 Office 365 img5
4) Turn Off Windows Firewall and Press “OK” Button.

Warning: You can activate Microsoft Windows Firewall after Office 365 repair is complete.

Step 2: Reset Internet Explorer Security settings

1. Now, tap on Start button.

start
2. Type the command “inetcpl.cpl” and click OK.
3. Click on the “Security” tab.

inetcpl security
4. Click “Reset all zones to default level” button at the bottom of the window.
5. Click OK button.

Step 3: Disable Antivirus

– Open Your Antivrus software
– Disable it till the Office 365 repair is going on. Check antivirus vendor website for more details.

Step 4: Try the installation again

In most case 0x80071a91 error code in Office 365 should be resolved by now, if however the problem still persists please get your system checked by an expert.

If you are not able to resolve the issue following above steps, you can contact our 24×7 Chat Support for help.

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  • Posted In: Office 365