30088-26 Office 365

30088-26 Error Code Office 365 Information
Difficulty LevelHigh
Resolution:DLL Issue
Cause:Application Layer Corrupt
Affected Operating Systems
  • Windows 8/8.1
  • Windows 7
  • Windows 10
  • Windows Vista

How To Fix 30088-26 Error Code in Office 365

Repair Difficulty : Critical

Step 1: Disable Windows Firewall

For Microsoft Windows 7 and later

1) Press “Win + R” and Type “Firewall.cpl” and Press Enter.
Office Error Code 30088-26 Office 365 img7
2) Microsoft Windows Firewall Window will Open.
3) On left hand side you will find “Turn Windows Firewall on or off”
Office Error Code 30088-26 Office 365 img7
Warning: You will need Admin rights to enable or disable firewall.
Office Error Code 30088-26 Office 365 img5
4) Click on “Turn off Windows Firewall (not recommended)” under each of the active network connections.

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

Step 2: Reset Internet Explorer Security settings

1. Now, tap on Start.

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 Win + R
Office Error Code 30088-26 Office 365 img14
2) Type “cmd” and Press Enter.
Office Error Code 30088-26 Office 365
3) Type “sfc /scannow” and press enter.
Office Error Code 30088-26 Office 365 img18
Note:
Step 3:Check System Files For Error
1) Press Win + R
Office Error Code 30088-26 Office 365
2) Type Cleanmgr and Press Enter.
Office Error Code 30088-26 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 30088-26 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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