80240055 Office 365

80240055 Error Code Office 365 Overview
Difficulty LevelVery High
Resolution:DLL Issue
Cause:System Level Conflict
Affected Operating Systems
  • Windows 8/8.1
  • Windows 7
  • Windows 10
  • Windows Vista

How To Fix 80240055 Error Code in Office 365

Repair Difficulty : Critical

Step 1: Disable Firewall

For Windows 8
1) Press Win+R button and Type “Control” followed by Enter key.
Office Error Code 80240055 Office 365 step 6
2) In Control Panel Window, type firewall in the search box and click on Windows Firewall.
Office Error Code 80240055 Office 365 step 7
Office Error Code 80240055 Office 365
3) Press “Turn Windows Firewall on or off”
Office Error Code 80240055 Office 365 img 9
Note: You will need Administrator rights to disable firewall.
Office Error Code 80240055 Office 365 img10
4) Turn
Off Windows Firewall and Press “OK” Button.
Office Error Code 80240055 Office 365 img11

Step 2: Check Proxy Setting

1) Goto Control Panel.
Windows 7 : Click On Start and then Click On Control Panel from Right window.
Windows 8 : Press Windows key + R and type “Control” and Press Enter.
Office Error Code 80240055 Office 365 img 9
2) In Control Panel Click on “Internet Options”.
3) Click On Connections Tab and then Click On LAN Setting.
Office Error Code 80240055 Office 365 img 11
4) Uncheck “Use a proxy server for your LAN” if its already ON.

Step 3: Disable Antivirus

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

Step 4: Try the installation again

In most case 80240055 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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  • January 1st, 1970

    Posted In: Office 365

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