408-4 Office 365

408-4 Error Code Office 365 Overview
Difficulty LevelVery High
Resolution:DLL Issue
Cause:File Corruption
Affected Operating Systems
  • Windows 8/8.1
  • Windows 7
  • Windows 10
  • Windows Vista

How To Fix 408-4 Error Code in Office 365

Repair Difficulty : High

Step 1: Disable Windows Firewall

For Microsoft Windows 7 and later

1) Press “Win+R” button and Type “Control” followed by Enter key.
Office Error Code 408-4 Office 365 img5
2) Open “Windows Firewall” from Control Panel .
Office Error Code 408-4 Office 365 img6
3) Press “Turn Windows Firewall on or off”
Office Error Code 408-4 Office 365 img7
Warning: If you are logged in as Normal user you will be asked to
Office Error Code 408-4 Office 365 img5
4) Turn Off Windows Firewall and Press “OK” Button.

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

Step 2: Reset Internet Explorer Security settings

1. Now, click on Start button.

start
2. Type the command “inetcpl.cpl” and click OK button.
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 again.

Step 3: Repair System Files

1) Press Win + R
Office Error Code 408-4 Office 365 img14
2) Type cmd and Press Enter.
Office Error Code 408-4 Office 365
3) Type “sfc /scannow” and press enter.
Office Error Code 408-4 Office 365 img18
Note: If you are logged in as Normal user you may be asked to

Step 4: Try the installation again

In most case 408-4 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