800705B9 Office 365

800705B9 Error Code Office 365 Overview
Difficulty LevelMedium
Resolution:DLL Issue
Cause:File Corruption
Affected Operating Systems
  • Windows 8/8.1
  • Windows 7
  • Windows 10
  • Windows Vista

How To Fix 800705B9 Error Code in Office 365

Repair Difficulty : Medium

Step 1: Disable Microsoft Windows Firewall

For Windows 7 and later

1) Press “Win + R” and Type “Firewall.cpl” and Press Enter.
Office Error Code 800705B9 Office 365 img7
2) Microsoft Windows Firewall Window will Open.
3) Tap On “Turn Windows Firewall on or off”
Office Error Code 800705B9 Office 365 img7
Note: You will need Admin privilege to enable or disable Windows firewall.
Office Error Code 800705B9 Office 365 img5
4) Turn Off Windows Firewall and Press “OK” Button.

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

Step 2: Reset Internet Explorer Security settings

1. Now, click on Start.

start
2. Enter the command “inetcpl.cpl” and click OK.
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: Run System Scan

1) Press Win + R
Office Error Code 800705B9 Office 365 img14
2) Type cmd and Press Enter.
Office Error Code 800705B9 Office 365
3) Type “sfc /scannow” and press enter.
Office Error Code 800705B9 Office 365 img18
Note:
Step 3:Check System Files For Error
1) Press Win + R
Office Error Code 800705B9 Office 365
2) Type Cleanmgr and Press Enter.
Office Error Code 800705B9 Office 365 img19
3) Select the OS Partition and Press OK.
4) Click on “Clean up System Files”

Step 4: Try the installation again

In most case 800705B9 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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