Error Code 30125-27 (400) When updating Office 2019/365/2016

Error Code 30125-27 (400) When updating Office 2019/365/2016

error code 30125-27 (400) while updating Office

This article describes techniques on how to determine and fix Microsoft Office installation error code 30125-27 (400). The techniques are often applied to all or any office installations that use Windows Installer (MSI), Click-to-Run.

Office error Code 30125-27 (400) is generally seen on your computer when you trying to update or install Microsoft Office. This could happen due to the poor network connection, Windows firewall, or network proxy settings changed.

error code 30125-27 (400) while updating Office

If your computer has installed two different licenses of Office suite product or trying to installing. You will get this error during installing Office products. You can’t install subscription and non-subscription version of Office product on the same computer.

If you want to install and run different versions of Office on the same computer. Read this article, How install and run a different version of Office on the same computer without any error?

Find Which type of install you have?

Before applying any troubleshooting steps, you should know what installation type you have. To know the type of install you have, read the below tips to find your installation type:

  • Open any one of your Office applications.
  • Select File.
  • Choose Account.
  • Click on about and check the following:
  1. Click-to-Run: Click-to-Run installations have a version and build number, and include a phrase Click-to-RunClick-to-Run
  2. MSI: An MSI installations don’t have a version and build number. MSI
  3. Microsoft Store: Microsoft Store installations have a version and build number, and include a phrase Microsoft StoreMicrosoft Store

Troubleshoot Microsoft Office to fix error code 30125-27 (400)

Follow the tips for troubleshooting error code 30125-27 (400) when install, uninstall, or update Office suite product.

Step 1: Disable Windows firewall settings

Temporarily disable Windows firewall setting on your computer. After installation is completed, you will again turn on your Windows firewall. If you don’t know how to disable the Windows Firewall, Read this article.

Step 2: Disable Network proxy settings

A disable network proxy setting will allow Office to download required files. After installation complete, please enable again your proxy setting. Follow the steps to disable a proxy setting on your computer.

  1. Open Settings.
  2. Click on the Network & Internet.
  3. Select Proxy.
  4. Turn off automatically detect settings.

Step 3: Disable antivirus

If you are using a third-party antivirus application on your computer, sometimes apps block installation or updates change in any application. we are sorry, but you need to disable the antivirus application setting during the installation or update of the Office suite product.

However, If you don’t know how to disable the antivirus application on your computer? Please visit your antivirus Official website to know how to disable the antivirus program?

you can also take help from support to know any further queries about any technical problems. Join Live chat with the support desk.

Step 4: Check your network cable and internet router

When Office updates and installation stop  again and again. This could be due to poor internet connection. Check your Wifi cable and modem connection properly connected or not? If all is good, Try connect your system on different network (such as take connection from your friends or other house member). Then try again to update or install Microsoft Office.

Note- Steps 1,2,3, and 4 help you to fix the error code 30125-27 (400). If the error is still not fixed, uninstall your Office product and reinstall a fresh copy of your Office suite.

Step 5: Uninstall Microsoft Office

Uninstall Office done on Windows in two ways:

  1. Using Control Panel, and
  2. Manually uninstall Office.

The First methods quite simple and taking a few minutes to uninstall the Office suite. But sometimes error code 30182 1011 block Office uninstall using this method. Second Methods, Manually Uninstall Office taking a long time to complete and need more attention during follow these methods.

If some steps were wrongly done, serious damage or system failure will be seen. Let’s try to uninstall Office using Control Panel.

Method 1: Uninstall Office suite from Control Panel

  1. Open Apps and Features, using Start.
  2. Choose your Office product that you want to uninstall.
  3. Click on the Office product from the list and select Uninstall.

Uninstall doesn’t complete using this method, Manually uninstall Office is required to completely remove or uninstall Office suite from your computer.

Method 2: Manually uninstall Office suite

Manually uninstall or remove Office from the computer taking a long time to finish the process. In this Method, Follow every step in correct order to safely uninstall Office with affecting your computer. Read the article, How to Manually Uninstall Office?

If you have any issue during follow the step of this method, take help from the support desk.

Once Office successfully removes from your computer. Follow Step 6, to download and install Microsoft Office.

Step 6: Download and Install Microsoft Office application

After successfully uninstall Office products from your computer, at this step, we will download and install a fresh Office setup from Microsoft Account.

  1. Login your Microsoft account. Don’t know where login. Click on this link
  2. Click on the Install Office.
  3. Download and install Microsoft Office.
  4. Click on the Close, when the installation is completed.


In this troubleshooting article, we have learned about error code 30125-27 (400) and tips to fix the Microsoft Office error during installation, uninstalling, and updating. All the possible steps to fix such an error code mentioned earlier in this post. However, the error still unresolved on your computer. Please contact support for further bits of help and fix.

Other useful information

If you are interested to know how to use Microsoft Office free forever. Read this section of the post.

Office Web Apps

This time we are talking about the Office Web suite available only if you have a Microsoft account and an internet connection. With this free strategy, the American firm wants to democratize its office suite in the face of an increasingly present Google Docs.

Here is the procedure to have Microsoft Office for free under Windows 10.

  • Download and install Microsoft Edge web browser in its latest version
  • From Microsoft Edge, go to
  • Sign in with your Microsoft account
  • Launch one of the Office suite applications (Word, Excel, PowerPoint …)
  • Open the Plus menu of the Edge browser
  • Click Install this site as an app
  • You can close Microsoft Edge

The application icon has been created on the desktop and when you click on it it will launch as locally installed software without needing to launch the browser. It only remains to reproduce the manipulation for each desired application.

As for the documents created, they are in your OneDrive storage space. In the free offer, you have 5 GB available.