MS Powerpoint Design Tab Themes

PowerPoint has no documented permanent reduction to 17 built-in themes, so compare the Design gallery with File > New, then run an Online Repair if the additional themes are missing from both locations.

1. Determine whether the themes are missing or have moved

1. Open a new Blank Presentation in the PowerPoint desktop app.
2. Select Design.
3. In the Themes group—not Variants—select the More/Themes down-arrow to open the entire gallery. Built-in themes should appear under Office.^1^
4. Select File > New and compare the available presentation designs there.

If the missing designs appear under File > New, they are probably templates rather than document themes. A theme controls coordinated colors, fonts, effects, and backgrounds; a template can also include layouts and starter content. These therefore do not necessarily appear in the same gallery.^2^

Microsoft still documents the expandable PowerPoint gallery and has not documented a permanent change limiting Microsoft 365 to 17 themes. A similar gallery mismatch has also been reported in Microsoft Q&A.^3^

2. Repair the built-in theme installation

If the themes are absent from both Design and File > New, repair Microsoft 365:

1. Close all Office applications.
2. Right-click Start and select Installed apps.
3. Find Microsoft 365.
4. Select the three dots (...) > Modify.
5. For the usual Click-to-Run installation, select Online Repair > Repair.
6. Complete the repair, restart Windows if requested, and open a new blank presentation.

Use Online Repair, not Quick Repair, for this case: Online Repair performs the more complete replacement of Office components. The operation repairs the entire Office suite, not PowerPoint alone.^4^

Afterward, check Design > Themes > More again.

3. Recover themes that were custom or previously downloaded

If the missing rows were themes added by you, your organization, or an earlier Office installation, an Office repair might not restore them.

In PowerPoint:

1. Select Design > Themes > More.
2. Select Browse for Themes.
3. Locate the original .thmx theme file and open it.

PowerPoint officially supports loading a custom theme or themed presentation through Browse for Themes.^1^

For personal templates that no longer appear:

1. Press Windows key + R.
2. Enter %appdata%\Microsoft\Templates\.
3. Copy the folder address shown in File Explorer.
4. In PowerPoint, open File > Options > Save.
5. Paste that address into Default personal templates location.
6. Restart PowerPoint and check File > New > Personal.

Microsoft notes that templates created with an earlier Microsoft 365 version can remain on disk without appearing by default until the personal-template location is configured.^5^

The Office Theme setting under File > Options > General changes PowerPoint’s interface appearance; it does not restore the slide themes in Design > Themes.^6^

References

1. Remove or change the current theme | Microsoft Support
2. Differences between templates, themes, and Word styles | Microsoft Support
3. Themes not showing up under designs tab??? - Microsoft Q&A
4. [Windows 11](https://support.microsoft.com/office/lifecycle/repair-an-office-application)
5. Where are my custom templates? | Microsoft Support
6. Change the look and feel of Microsoft 365 | Microsoft Support