30045-4-1 Office 365

30045-4-1 Error Code Office 365 Overview
Difficulty LevelCritical
Resolution:DLL Issue
Cause:Application Layer Corrupt
Affected Operating Systems
  • Windows 8/8.1
  • Windows 7
  • Windows 10
  • Windows Vista

How To Fix 30045-4-1 Error Code in Office 365

Repair Difficulty : High

Step 1: Disable Windows Firewall

For Windows 7 and later

1) Press “Windows Key + R” and Type “Firewall.cpl” and Press Enter.
Office Error Code 30045-4-1 Office 365 img7
2) Microsoft Windows Firewall Window will Open.
3) Click On “Turn Windows Firewall on or off”
Office Error Code 30045-4-1 Office 365 img7
Warning: If you are logged in as Normal user you will be asked to
Office Error Code 30045-4-1 Office 365 img5
4) Under “Home or Work Network Location Settings” And “Public Network Location Settings” Click On “Turn Off Windows Firewall”

Note: You can activate Windows Firewall after Office 365 repair is complete.

Step 2: Reset Internet Explorer Security settings

1. Now, click on Start.

start
2. Type 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 again.

Step 3: Check System Integrity

1) Press Windows + R
Office Error Code 30045-4-1 Office 365 img14
2) Type cmd and Press Enter.
Office Error Code 30045-4-1 Office 365
3) Type “sfc /scannow” and press enter.
Office Error Code 30045-4-1 Office 365 img18
Note:
Step 3:Disk Cleanup
1) Press Windows + R
Office Error Code 30045-4-1 Office 365
2) Type Cleanmgr and Press Enter.
Office Error Code 30045-4-1 Office 365 img19
3) Select the OS Partition and Press OK.
4) Finally Click on Clean up System Files

Step 4: Try the installation again

In most case 30045-4-1 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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