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12002-1 Office 365

12002-1 Error Code Office 365 Overview
Difficulty LevelVery High
Resolution:Virus Issue
Cause:File Corruption
Affected Operating Systems
  • Windows 8/8.1
  • Windows 7
  • Windows 10
  • Windows Vista

How To Fix 12002-1 Error Code in Office 365

Repair Difficulty : Critical

Step 1: Disable Firewall

For Microsoft Windows 7 and later

1) Open Control Panel Window (Click Start Office Error Code 12002-1 Office 365 img4 and press “Control Panel” Button on Right Side)
Office Error Code 12002-1 Office 365 img5
2) In Control Panel , type firewall in the search box and click on Windows Firewall.
Office Error Code 12002-1 Office 365 img6
3) Tap On “Turn Windows Firewall on or off”
Office Error Code 12002-1 Office 365 img7
Note: You will need Admin rights to disable firewall.
Office Error Code 12002-1 Office 365 img5
4) Under “Home or Work Network Location Settings” And “Public Network Location Settings” Click On “Turn Off Windows Firewall”

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

Step 2: Check Proxy Setting

1) Goto Control Panel.
Microsoft Windows 7 : Click Start and then Select Control Panel from Right window.
Windows 8 : Press Windows Key + Q and Type “Control” And Click on it.
2) Click On “Internet Options” In Control Panel .
3) Click On Connections Tab and then Press LAN Setting.
Office Error Code 12002-1 Office 365 img 11
4) Uncheck “Use a proxy server for your LAN” if its switched ON.

Step 3: Temporarily Disable Antivirus

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

Step 4: Try the installation again

In most case 12002-1 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