0x800408fc Office 365

0x800408fc Error Code Office 365 Overview
Difficulty LevelCritical
Resolution:System Fix
Cause:Malwares/Virus
Affected Operating Systems
  • Windows 8/8.1
  • Windows 7
  • Windows 10
  • Windows Vista

How To Fix 0x800408fc Error Code in Office 365

Repair Difficulty : Critical

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 0x800408fc Office 365 img5
2) In Control Panel Window, Open Windows Firewall.
Office Error Code 0x800408fc Office 365 img6
3) Press “Turn Windows Firewall on or off”
Office Error Code 0x800408fc Office 365 img7
Warning: You will need Admin rights to disable firewall.
Office Error Code 0x800408fc Office 365 img5
4) Under “Home or Work Network Location Settings” And “Public Network Location Settings” Click On “Turn Off Windows Firewall”

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

Step 2: Reset Internet Explorer Security settings

1. Now, tap on Start button.

start
2. Enter the command “inetcpl.cpl” and click OK button.
3. Click on the “Security” tab.

inetcpl security
4. Click “Reset all zones to default level” button at the bottom of the window.
5. Click OK button.

Step 3: Temporarily Disable Antivirus

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

Step 4: Try the installation again

In most case 0x800408fc 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