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Office Installation Errors

How to Fix Cannot Install Office Authoring Language and Proofing Tools

Partner EditorPartner Editor Sep 30, 2026 868 views

Question details

The user is unable to install or upgrade grammar checkers and proofing tools in an education-licensed Microsoft 365 environment.

How to Fix "Cannot Install Office Authoring Language and Proofing Tools"
Product
Microsoft 365
Device & OS
not provided
Scenario
Attempting to use or upgrade authoring languages and proofing tools for spell and grammar checking in Office apps.
Observed behavior
The proofing tools fail to install or update, potentially due to institutional deployment restrictions limiting Office to the English version.
Before you start

Ensure all Microsoft Office applications (Word, Excel, PowerPoint) are completely closed before attempting any repair or reinstallation, and verify you have administrative access to your computer.

Solution 1Recommended

Run an Online Repair for Microsoft 365

Running an Online Repair fixes corrupted installation files and can trigger the automatic download of missing proofing tools.

Microsoft Office typically installs the proofing tools associated with the selected display language automatically. If they fail to load, an online repair can restore the necessary background services.

1
Open Control Panel

Press the Windows key, type 'Control Panel' in the search bar, and open the application.

2
Navigate to Programs and Features

Click on 'Programs' and then select 'Programs and Features' to view your installed applications.

3
Modify Microsoft 365

Locate 'Microsoft 365' in the list, right-click it, and select 'Change'.

4
Select Online Repair

Choose 'Online Repair' from the prompt window and click 'Repair' to begin the process. Wait for the repair to finish.

5
Restart Your Computer

Once the repair is complete, restart your computer and open an Office app to check if the proofing tools are now functioning.

Run an Online Repair for Microsoft 365
Internet Connection Required: The Online Repair option requires a stable internet connection as it re-downloads necessary installation files.
Free Microsoft Office alternative

Use WPS Office for Hassle-Free Spell Check and Multilingual Proofing

If your university restricts Office installations or you cannot fix the proofing tools error, WPS Office is an excellent free alternative. It offers built-in multilingual spell check, broad format compatibility, and a lightweight installation that bypasses complex administrative restrictions.

  1. 1. Download WPS Office: Visit the official WPS website and download the free installation package.
  2. 2. Install the Software: Run the installer. The process is lightweight and does not require administrative overrides for basic features.
  3. 3. Enable Spell Check: Open a document, go to the 'Review' tab, and select 'Spell Check' to instantly access proofing tools in your preferred language.
Seamless compatibility with Microsoft Office formats (.docx, .xlsx, .pptx).Built-in multi-language spell check and proofing tools that are easy to switch and download.Lightweight software that installs quickly without complex deployment errors.Free to use with a familiar user interface, requiring zero learning curve.
microsoft office alternative - wps office

Frequently Asked Questions

Why are my Office proofing tools missing in Microsoft 365?

Proofing tools are typically installed automatically based on your selected display language. They might be missing due to corrupted installation files, incomplete updates, or institutional IT policies restricting additional language pack downloads.

Can I download Microsoft Office proofing tools separately?

In newer versions of Microsoft 365, proofing tools and authoring languages are not separate standalone downloads. You add them by going to File > Options > Language and adding an authoring language, which prompts Office to download the necessary tools in the background.

Does the Office Deployment Tool (ODT) affect proofing languages?

Yes. If your university or organization used the ODT to install Office, the configuration XML file dictates which languages are installed. If a language is not included in the XML, users will face errors when trying to install it manually.

How do I change the spell check language in Word?

Go to the Review tab, click on Language, and select Set Proofing Language. Choose your desired language from the list. If it has a checkmark with an ABC icon next to it, the proofing tools are successfully installed.