0xc00cee3a Office 365

0xc00cee3a Error Code Office 365 Overview
Difficulty LevelHigh
Resolution:DLL Issue
Cause:Software Level Conflict
Affected Operating Systems
  • Windows 8/8.1
  • Windows 7
  • Windows 10
  • Windows Vista

How To Fix 0xc00cee3a Error Code in Office 365

Repair Difficulty : Medium

Step 1: Disable Firewall

For Microsoft Windows 7 and later

1) Press Win+R button and Type “Control” followed by Enter key.
Office Error Code 0xc00cee3a Office 365 img5
2) In Control Panel Window, type firewall in the search box and click on Windows Firewall.
Office Error Code 0xc00cee3a Office 365 img6
3) On left panel you will find “Turn Windows Firewall on or off”
Office Error Code 0xc00cee3a Office 365 img7
Note: You will need Administrator rights to enable or disable Windows firewall.
Office Error Code 0xc00cee3a Office 365 img5
4) Under “Home or Work Network Location Settings” And “Public Network Location Settings” Click On “Turn Off Windows Firewall”

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

Step 2: 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 + Q and Type “Control” And Click on it.
2) In Control Panel Click on “Internet Options”.
3) Click On Connections Tab and then Press LAN Setting.
Office Error Code 0xc00cee3a Office 365 img 11
4) Uncheck “Use a proxy server for your LAN” if its switched ON.

Step 3: Disable Antivirus

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

Step 4: Try the installation again

In most case 0xc00cee3a 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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