1100931 Office 365

1100931 Error Code Office 365 Overview
Difficulty LevelVery High
Resolution:Manual
Cause:Software Level Conflict
Affected Operating Systems
  • Windows 8/8.1
  • Windows 7
  • Windows 10
  • Windows Vista

How To Fix 1100931 Error Code in Office 365

Repair Difficulty : High

Step 1: Disable Firewall

For Microsoft Windows 7 and later

1) Press “Windows Key + R” and Type “Firewall.cpl” and Press Enter.
Office Error Code 1100931 Office 365 img7
2) Windows Firewall Window will Open.
3) Tap On “Turn Windows Firewall on or off”
Office Error Code 1100931 Office 365 img7
Warning: You will need Admin privilege to disable Windows firewall.
Office Error Code 1100931 Office 365 img5
4) Turn Off Windows Firewall and Press “OK” Button.

Note: Please Activate Windows Firewall after Office 365 repair is complete.

Step 2: Reset Internet Explorer Security settings

1. Now, click on Start button.

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 button.

Step 3: Check System Integrity

1) Press Windows + R
Office Error Code 1100931 Office 365 img14
2) Type “cmd” and Press Enter.
Office Error Code 1100931 Office 365
3) Type “sfc /scannow” and press enter.
Office Error Code 1100931 Office 365 img18
Note: If you are logged in as Normal user you may be asked to

Step 4: Try the installation again

In most case 1100931 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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