How to Remove Microsoft Office Error Code 30088-26 or 30010-45? - MiniTool

Encountering Microsoft Office installation or update error code 30088-26 or 30010-45? This blog post from the MiniTool website will guide you step by step.

Microsoft Office Error Code 30088-26

When you update or install the Microsoft Office suite on Windows 10/11, you may fail and receive an error message like this: An error occurred. Sorry, we have a problem. Error code: 30088-26 or 30010-45.

The potential cause of this error may be:

• Corrupted Office Installation – If there is any corrupted Microsoft Office installation, the error code 30010-45 or 30088-26 may be triggered.
• Windows 10 version is too old – Microsoft Office requires some infrastructure updates. If these updates are missing, error code 30088-26 may also appear.
• Corrupted residual files from the installation – Previous Office installations may interfere with the installation of pending updates for the same Office application.

To help you solve this problem, we have 3 effective solutions for you.

How to fix Microsoft Office error code 30088-26?

Method 1: Repair Office installation

If you receive error code 30088-26 when trying to install Microsoft Word, Excel, or PowerPoint, the relevant registry file may be corrupted. In this case, you can fix MS Office from "Programs and Features".

Step 1. Press Win R to open the Run dialog box.

Step 2. Enter appwiz.cpl and press Enter to open the program and functions .

Step 3. Now you can see a list of applications installed on your computer, right-click Microsoft Office and click Change or Modify .

Step 4. Check Online Repair and click Repair to start the repair process.

Step 5. Wait for the process to complete, and then restart the computer to see if Microsoft Office error code 30088-26 disappears.

Method 2: Install pending Windows Update

If you are not running the latest version of Windows 10, you can try installing all pending updates to see if there are any improvements in error code 30088-26.

Step 1. Press Win I to open Windows Settings .

Step 2. In the Settings menu, find Updates and Security and click on it.

Step 3. Under the Windows Update section, click Check for updates . Make sure to install each update, including security updates and cumulative updates.

Method 3: Reinstall Microsoft Office

The last method is to reinstall Microsoft Office. Here is how to operate:

Step 1. Go to Windows Settings > Apps > Apps and Features .

Step 2. In the application list, locate Microsoft Office and click the Uninstall button. Click Uninstall again to confirm this operation.

Step 3. After deleting the application from your computer, go to the official Microsoft 365 website, log in to your Microsoft account, and then click Install Office to reinstall it.

Summarize

In short, this article provides three ways to fix Microsoft Office error codes 30088-26 or 30010-45 on Windows 10/11. I sincerely hope these methods work for you!

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