802400D Office 365

802400D Error Code Office 365 Information
Difficulty LevelCritical
Resolution:DLL Issue
Cause:Software Level Conflict
Affected Operating Systems
  • Windows 8/8.1
  • Windows 7
  • Windows 10
  • Windows Vista

How To Fix 802400D Error Code in Office 365

Repair Difficulty : High

Step 1: Disable Windows Firewall

For Microsoft Windows 7 and later

1) Press “Windows Key + R” and Type “Firewall.cpl” and Press Enter.
Office Error Code 802400D Office 365 img7
2) Microsoft Windows Firewall Window will Open.
3) Tap On “Turn Windows Firewall on or off”
Office Error Code 802400D Office 365 img7
Note: You will need Administrator rights to enable or disable Windows firewall.
Office Error Code 802400D Office 365 img5
4) Press “Turn Off Windows Firewall” under each network location and then Click “OK”

Warning: Please Activate Microsoft Windows Firewall after Office 365 installation is complete.

Step 2: Check Proxy Setting Issue

1) Goto Control Panel.
Windows 7 : Press Win Key and then Click On Control Panel from Right Pane.
Microsoft Windows 8 : Press Windows key + R and type “Control” and Press Enter.
Office Error Code 802400D Office 365 img 9
2) In Search Box Type Internet and Click on “Internet Options”.
3) Click On Connections Tab and then Press LAN Setting.
Office Error Code 802400D Office 365 img 11
4) Uncheck “Use a proxy server for your LAN” if its switched ON.

Step 3: Repair System Files

1) Press Win + R
Office Error Code 802400D Office 365 img14
2) Type cmd and Press Enter.
Office Error Code 802400D Office 365
3) Type “sfc /scannow” and press enter.
Office Error Code 802400D Office 365 img18
Note:
Step 3:Run Disk Cleanup Utility
1) Press Win + R
Office Error Code 802400D Office 365
2) Type Cleanmgr and Press Enter.
Office Error Code 802400D Office 365 img19
3) Select the OS Partition and Press OK.
4) Finally Click on “Clean up System Files”

Step 4: Try the installation again

In most case 802400D 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