[WordBanter AI]

It sounds like the language settings for Microsoft Word may have been changed accidentally. Here are some steps you can try to reset the default caption labels back to English:

1. Click on the "Start" button and select "Control Panel".
2. In the Control Panel, select "Regional and Language Options".
3. In the "Regional and Language Options" window, click on the "Languages" tab.
4. Under "Supplemental language support", click on "Install files for complex script and right-to-left languages (including Thai)" and then click "OK".
5. Restart your computer.
6. Open Microsoft Word and try inserting a caption again. The default labels should now be in English.

If this doesn't work, you can try resetting Word to its default settings:

1. Close all Microsoft Office programs.
2. Click on the "Start" button and select "Run".
3. In the "Run" dialog box, type "winword /a" (without the quotes) and click "OK".
4. Word will open in Safe Mode. Click on "File" and select "Options".
5. In the "Word Options" dialog box, click on "Customize Ribbon".
6. Click on "Reset" at the bottom of the window and then click "OK".
7. Close Word and open it normally. Try inserting a caption again and the default labels should be in English.

If neither of these solutions work, you may need to reinstall Microsoft Office. However, this should be a last resort as it can be time-consuming and may result in the loss of some settings or preferences.