0x40-0 Office 365

0x40-0 Error Code Office 365 Overview
Difficulty LevelCritical
Resolution:Manual
Cause:Malwares/Virus
Affected Operating Systems
  • Windows 8/8.1
  • Windows 7
  • Windows 10
  • Windows Vista

How To Fix 0x40-0 Error Code in Office 365

Repair Difficulty : Medium

Step 1: Disable Firewall

For Microsoft Windows 8
1) Press “Win+R” button and Type “Control” followed by Enter key.
Office Error Code 0x40-0 Office 365 step 6
2) In Control Panel Window, Open Windows Firewall.
Office Error Code 0x40-0 Office 365 step 7
Office Error Code 0x40-0 Office 365
3) Press “Turn Windows Firewall on or off”
Office Error Code 0x40-0 Office 365 img 9
Note: If you are logged in as Normal user you will be asked to enter Admin Password
Office Error Code 0x40-0 Office 365 img10
4) Click on “Turn off Windows Firewall (not recommended)” under each of the active network connections.
Office Error Code 0x40-0 Office 365 img11

Step 2: Reset Internet Explorer Security settings

1. Now, click on Start.

start
2. Enter 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 again.

Step 3: Check System Integrity

1) Press Win + R
Office Error Code 0x40-0 Office 365 img14
2) Type “cmd” and Press Enter.
Office Error Code 0x40-0 Office 365
3) Type “sfc /scannow” and press enter.
Office Error Code 0x40-0 Office 365 img18
Note:
Step 3:Run Disk Cleanup Utility
1) Press Win + R
Office Error Code 0x40-0 Office 365
2) Type Cleanmgr and Press Enter.
Office Error Code 0x40-0 Office 365 img19
3) Select the OS Drive and Press OK.
4) Click on “Clean up System Files”

Step 4: Try the installation again

In most case 0x40-0 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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