Office Settings & Configuration

Fix Cannot Change Proofing Language to English UK in PowerPoint

Tauseeq Magsi Oct 9, 2026 870 views

Question details

The user is unable to switch the proofing language to English (United Kingdom) in a specific PowerPoint presentation copied from SharePoint, resulting in valid UK spellings being flagged as errors.

How to Fix PowerPoint Cannot Change Proofing Language to English UK

Product: PowerPoint
Device & OS: Windows
Scenario: Editing a PowerPoint presentation copied from SharePoint where the user wants to use English (United Kingdom) for spell checking.
Observed behavior: PowerPoint repeatedly flags English (UK) spellings as errors in the imported file, despite Windows and Office default settings already being configured for English (UK). New presentations and Word documents do not experience this issue.

Before you start

Ensure that your global Windows and Office language preferences are correctly set to English (United Kingdom). Verify whether the spelling issue is isolated to this specific downloaded file or if it affects all newly created blank presentations.

Solution 1Recommended

Manually Set the Proofing Language for Affected Text

Apply the correct language setting directly to the affected text or slides to override the imported language formatting.

Presentations imported from external sources like SharePoint often carry over the direct formatting of the original author. If the text boxes were created under US English settings, they will ignore your global Office language preferences until manually changed.

Select the text

Click inside the affected text box and press Ctrl + A to select all the text, or select multiple slides in the left thumbnail pane.

Navigate to language settings

Go to the 'Review' tab on the PowerPoint ribbon.

Open proofing language options

Click on 'Language' in the Language group, then select 'Set Proofing Language' from the drop-down menu.

Apply English (United Kingdom)

Scroll through the list, select 'English (United Kingdom)', ensure the 'Do not check spelling or grammar' box is unchecked, and click 'OK'.

Manually Set the Proofing Language for Affected Text

Applying to multiple text boxes: PowerPoint does not globally change the language for all existing text boxes at once. You may need to repeat this process for individual slides if they contain different direct language formatting.

Solution 2

Update Language in the Slide Master

Change the default proofing language for the presentation's template to prevent future slides from defaulting to US English.

Easily Manage Proofing Languages with WPS Presentation

If you frequently struggle with language formatting and stubborn spell-check settings in imported files, try WPS Office. It provides an intuitive way to manage proofing languages and handles complex presentation formatting with ease.

1. Open your file: Launch WPS Presentation and open your imported .pptx file.
2. Go to the Review tab: Select the text you want to correct and navigate to the 'Review' tab on the top ribbon menu.
3. Access spell check settings: Click on 'Spell Check' and choose 'Set Spell Check Language' from the dropdown options.
4. Apply English UK: Select 'English (United Kingdom)' from the dialog box and apply it to resolve any unwarranted red underlines.

Perfect compatibility with Microsoft Office formats, including PowerPoint (.pptx) files.Intuitive tools to easily set, manage, and correct spell check and proofing languages.Lightweight software design that opens large presentations quickly without lagging.Free Office suite with a familiar user interface for a seamless, zero-learning-curve migration.

microsoft office alternative - wps office

Frequently Asked Questions

Why does PowerPoint revert to English (US) even if my Windows is set to English (UK)?

Text boxes and slides in PowerPoint can retain the direct language formatting of the original template or the author's system settings. When you open a file from someone else or from SharePoint, the text retains its original language formatting, ignoring your local PC settings.

How can I change the default proofing language for all new presentations?

Go to File > Options > Language in PowerPoint. Under the 'Office authoring languages and proofing' section, ensure that English (United Kingdom) is added to the list and click 'Set as Preferred'. Restart PowerPoint for the changes to take effect.

Does copying and pasting slides change their proofing language?

Yes. If you use the 'Keep Source Formatting' paste option, PowerPoint imports the proofing language of the source presentation. If the source was set to US English, those pasted slides will use US English for spell check.

Can I change the proofing language for the entire presentation at once in PowerPoint?

PowerPoint lacks a single button to universally change the language of every existing text box at once. To update it globally, you usually need to change the language in the Slide Master or go to the Outline View, select all text (Ctrl + A), and apply the language via the Review tab.

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