3-28 Office 365

3-28 Error Code Office 365 Information
Difficulty LevelVery High
Resolution:System Fix
Cause:File Corruption
Affected Operating Systems
  • Windows 8/8.1
  • Windows 7
  • Windows 10
  • Windows Vista

How To Fix 3-28 Error Code in Office 365

Repair Difficulty : Critical

Step 1: Disable Microsoft Windows Firewall

For Microsoft Windows 7 and later

1) Click Start Button Office Error Code 3-28 Office 365 Img1 and then Tap on “Control Panel” icon.
Office Error Code 3-28 Office 365 img5
2) In Control Panel Window, type firewall in the search box and click on “Windows Firewall”.
Office Error Code 3-28 Office 365 img6
3) Click On “Turn Windows Firewall on or off”
Office Error Code 3-28 Office 365 img7
Note: You will need Admin rights to disable Windows firewall.
Office Error Code 3-28 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 Microsoft Windows Firewall after Office 365 repair is complete.

Step 2: Check Proxy Setting Issue

1) Goto Control Panel.
Microsoft Windows 7 : Click Start and then Select Control Panel from Right window.
Windows 8 : Press Windows key + R and type “Control” and Press Enter.
Office Error Code 3-28 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 3-28 Office 365 img 11
4) Turn off “Use a proxy server for your LAN” if its already ON.

Step 3: Disable Antivirus

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

Step 4: Try the installation again

In most case 3-28 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