9C59 Office 365

9C59 Error Code Office 365 Overview
Difficulty LevelVery High
Resolution:Virus Issue
Cause:System Level Conflict
Affected Operating Systems
  • Windows 8/8.1
  • Windows 7
  • Windows 10
  • Windows Vista

How To Fix 9C59 Error Code in Office 365

Repair Difficulty : High

Step 1: Disable Firewall

For Windows 7 and later

1) Press “Windows Key + R” and Type “Firewall.cpl” and Press Enter.
Office Error Code 9C59 Office 365 img7
2) Windows Firewall Window will Open.
3) Tap On “Turn Windows Firewall on or off”
Office Error Code 9C59 Office 365 img7
Warning: If you are logged in as Normal user you will be asked to login as Administrator.
Office Error Code 9C59 Office 365 img5
4) Turn Off Windows Firewall and Press “OK” Button.

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

Step 2: Proxy Issue

1) Open Control Panel.
Windows 7 : Press Win Key and then Select Control Panel from Right window.
Microsoft Windows 8 : Press Windows key + R and type “Control” and Press Enter.
Office Error Code 9C59 Office 365 img 9
2) In Search Box Type Internet and Click on “Internet Options”.
3) Select Connections Tab and then Press LAN Setting.
Office Error Code 9C59 Office 365 img 11
4) Uncheck “Use a proxy server for your LAN” if its already ON.

Step 3: Run System Scan

1) Press Windows + R
Office Error Code 9C59 Office 365 img14
2) Type cmd and Press Enter.
Office Error Code 9C59 Office 365
3) Type “sfc /scannow” and press enter.
Office Error Code 9C59 Office 365 img18
Note: You will need Administrator rights to run the command.

Step 4: Try the installation again

In most case 9C59 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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