Fix: Microsoft Office Error Code 30088-26 When Updating Office

Are you getting an error code 30088-26 when you try to update MS Office on your Windows OS.? In this guide, I'm going to tell you how to fix this problem and...

Swayam Prakash

Last updated on September 26, 2023

Swayam Prakash

Author

Swayam is a professional tech blogger with Masters Degree in Computer Applications and also has experience with Android development. He is a staunch admirer of Stock Android OS.Apart from tech blogging, he loves gaming, traveling and playing/teaching guitar.

Microsoft Office Error Code 30088-26: How To Fix

I have explained the steps for all the solutions that I have mentioned above. So, check each one of them out.

Fix Error Code 30088-26 by Repairing Office Installation

Press Windows + I to go to system settings

Click on Apps > Apps & Features

Navigate to Office and click to highlight it

You will see Advanced Options. Click on it to go to the next screen

On the next screen, click on the option Repair

Again click on Repair to confirm your action

After the repair process finishes install the available update for MS Office suite apps.

Uninstall and reinstall MS Office on your PC

Here are the steps you should follow.

Go to Settings > Apps
Click on Apps & features to see the list of installed Apps
Scroll to Office and click on it to see the option for Uninstalling it
After that click on Uninstall
Confirm by clicking on Uninstall once again
Now to reinstall the MS Office suite go to www.office.com
Login to your Microsoft account through the web browser
Click on Install Office
Now click on the file that you just downloaded to start installing the Office suite.

Once you finish the installation of MS Office, install the pending update for MS Office.

Before installing the Update for MS Office Disable Windows Firewall

Sometimes to download or install any update you may have to momentarily turn off the Firewall on your PC. It may consider any executable update as a malicious file. That may also trigger the error code 30088-26.

Press Windows + I to access the Settings
There click on the option Update & Security
On the left-hand panel click on Windows Security
then click on Firewall and Network Protection
There will be two options Private Network and Public Network
Click on Public Network and click on the toggle below Microsoft Defender Firewall to disable
Access Private Network and repeat the above steps

While the firewall is down, quickly install the update for the MS Office suite. Then make sure to reinstate the Windows Firewall for both the Public and Private network option.

Perform SFC Scan to Fix Corrupt Files and Error Code 30088-26

This is one of the best solutions to fix errors caused by the system files that may be corrupt. Here are the steps to do an SFC scan.

Make sure you are running the PC with administrator rights
Open command prompt
Type sfc/scannow
Press enter
Do not press or click anything while the scan is underway
The system will find and fix corrupt files when detected

Once the scan finishes try to install the update on the MS Office suite. You shouldn’t face any error code 30088-26.

So, that’s all about how to fix the error code 30088-26 while trying to update the Microsoft Office suite on your Windows 10 computer. I hope that this guide was informative.