80070663-0 Office 365

80070663-0 Error Code Office 365 Overview
Difficulty LevelMedium
Resolution:DLL Issue
Cause:Application Layer Corrupt
Affected Operating Systems
  • Windows 8/8.1
  • Windows 7
  • Windows 10
  • Windows Vista

How To Fix 80070663-0 Error Code in Office 365

Repair Difficulty : High

Step 1: Disable Firewall

For Windows 7 and later

1) Click Start Button Office Error Code 80070663-0 Office 365 and in search box type “Control Panel” Office Error Code 80070663-0 Office 365 img2 and Click on it.
Office Error Code 80070663-0 Office 365 img5
2) In Control Panel Window, Click on Windows Firewall.
Office Error Code 80070663-0 Office 365 img6
3) Tap On “Turn Windows Firewall on or off”
Office Error Code 80070663-0 Office 365 img7
Note: If you are logged in as Normal user you will be asked to
Office Error Code 80070663-0 Office 365 img5
4) Finally Click on “Turn off Windows Firewall (not recommended)” under each of the active network connections.

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

Step 2: Proxy Setting

1) Open Control Panel.
Windows 7 : Click Start and then Click On Control Panel from Right window.
Microsoft Windows 8 : Press Windows Key + Q and Type “Control” And Click on it.
2) In Control Panel Click on “Internet Options”.
3) Select Connections Tab and then Choose LAN Setting.
Office Error Code 80070663-0 Office 365 img 11
4) Uncheck “Use a proxy server for your LAN” if its already ON.

Step 3: Run System Scan

1) Press Win + R
Office Error Code 80070663-0 Office 365 img14
2) Type “cmd” and Press Enter.
Office Error Code 80070663-0 Office 365
3) Type “sfc /scannow” and press enter.
Office Error Code 80070663-0 Office 365 img18
Note: You will need Administrator previlage to run the command.

Step 4: Try the installation again

In most case 80070663-0 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