30045-4 Office 365

30045-4 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 30045-4 Error Code in Office 365

Repair Difficulty : Critical

Step 1: Disable Firewall

For Windows 8
1) Press Windows Button and Type “Control Panel” and Press Enter.
Office Error Code 30045-4 Office 365 step 6
2) In Control Panel Window, type firewall in the search box and click on “Windows Firewall”.
Office Error Code 30045-4 Office 365 step 7
Office Error Code 30045-4 Office 365
3) Click On “Turn Windows Firewall on or off”
Office Error Code 30045-4 Office 365 img 9
Note: If you are logged in as Guest user you will be asked to
Office Error Code 30045-4 Office 365 img10
4) Under “Home or Work Network Location Settings” And “Public Network Location Settings” Click On “Turn Off Windows Firewall”
Office Error Code 30045-4 Office 365 img11

Step 2: Temporarily turn off Proxy Settings

1) Open Control Panel.
Windows 7 : Click Start and then Select Control Panel from Right Pane.
Windows 8 : Press Windows Key + Q and Type “Control” And Click on it.
2) Open “Internet Options” In Control Panel Window.
3) Click On Connections Tab and then Press LAN Setting.
Office Error Code 30045-4 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 installation is going on. Check antivirus vendor website for more details.

Step 4: Try the installation again

In most case 30045-4 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