300294 Office 365

300294 Error Code Office 365 Overview
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 300294 Error Code in Office 365

Repair Difficulty : High

Step 1: Disable Firewall

For Microsoft Windows 7 and later

1) Open Control Panel Window (Click Start Office Error Code 300294 Office 365 img4 and press “Control Panel” Button on Right Side)
Office Error Code 300294 Office 365 img5
2) In Control Panel Window, type firewall in the search box and click on Windows Firewall.
Office Error Code 300294 Office 365 img6
3) Tap On “Turn Windows Firewall on or off”
Office Error Code 300294 Office 365 img7
Warning: If you are logged in as Normal user you will be asked to login as Administrator.
Office Error Code 300294 Office 365 img5
4) Press “Turn Off Windows Firewall” under each network location and then Click “OK”

Warning: Please Activate Windows Firewall after Office 365 installation 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.
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 again.

Step 3: Temporarily Disable Antivirus

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

Step 4: Try the installation again

In most case 300294 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