388 Office 365

388 Error Code Office 365 Overview
Difficulty LevelMedium
Resolution:Manual
Cause:System Level Conflict
Affected Operating Systems
  • Windows 8/8.1
  • Windows 7
  • Windows 10
  • Windows Vista

How To Fix 388 Error Code in Office 365

Repair Difficulty : Critical

Step 1: Disable Microsoft Windows Firewall

For Windows 8
1) Press Win Button and Type Control Panel and Press Enter.
Office Error Code 388 Office 365 step 6
2) Open Windows Firewall from Control Panel
Office Error Code 388 Office 365 step 7
Office Error Code 388 Office 365
3) Press “Turn Windows Firewall on or off”
Office Error Code 388 Office 365 img 9
Warning: If you are logged in as Guest user you may be asked to login as Administrator.
Office Error Code 388 Office 365 img10
4) Under “Home or Work Network Location Settings” And “Public Network Location Settings” Click On “Turn Off Windows Firewall”
Office Error Code 388 Office 365 img11

Step 2: Reset Internet Explorer Security settings

1. Now, tap on Start button.

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: Repair System Files

1) Press Windows + R
Office Error Code 388 Office 365 img14
2) Type cmd and Press Enter.
Office Error Code 388 Office 365
3) Type “sfc /scannow” and press enter.
Office Error Code 388 Office 365 img18
Note: If you are logged in as Normal user you will be asked to

Step 4: Try the installation again

In most case 388 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