30045-27 Office 365

30045-27 Error Code Office 365 Overview
Difficulty LevelHigh
Resolution:Virus Issue
Cause:Malwares/Virus
Affected Operating Systems
  • Windows 8/8.1
  • Windows 7
  • Windows 10
  • Windows Vista

How To Fix 30045-27 Error Code in Office 365

Repair Difficulty : Medium

Step 1: Disable Windows Firewall

For Microsoft Windows 7 and later

1) Press “Windows Key + R” and Type “Firewall.cpl” and Press Enter.
Office Error Code 30045-27 Office 365 img7
2) Microsoft Windows Firewall Window will Open.
3) Tap On “Turn Windows Firewall on or off”
Office Error Code 30045-27 Office 365 img7
Note: You will need Administrator rights to disable firewall.
Office Error Code 30045-27 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

1) Open Control Panel.
Windows 7 : Press Win Key and then Select Control Panel from Right window.
Microsoft Windows 8 : Press Windows Key + Q and Type “Control” And Click on it.
2) Open “Internet Options” In Control Panel .
3) Select Connections Tab and then Click On LAN Setting.
Office Error Code 30045-27 Office 365 img 11
4) Turn off “Use a proxy server for your LAN” if its already ON.

Step 3: Check System Integrity

1) Press Win + R
Office Error Code 30045-27 Office 365 img14
2) Type cmd and Press Enter.
Office Error Code 30045-27 Office 365
3) Type “sfc /scannow” and press enter.
Office Error Code 30045-27 Office 365 img18
Note:
Step 3:Check System Files For Error
1) Press Windows + R
Office Error Code 30045-27 Office 365
2) Type Cleanmgr and Press Enter.
Office Error Code 30045-27 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 30045-27 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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