Hello, yaakgirl
Welcome to the Microsoft community.I realize that you have encountered a problem that you cannot zoom in Word document on Windows 11. I understand how you feel. Feel free to correct me if my understanding is wrong.
Here are a few steps you can try:
1. Delete Word templates.
2. Cancel add-ins.
Click Filein the upper-left corner of the document -> Options-> Add-ins -> at the bottom of this page, change the "Manage" option to "COM Add-ins" and select "Go" > uncheck all add-ins> Click OK.
Restart Wordand see the effect.
Also, due to limited information and various possible reasons for the problem, we may ask you for more detailed information.
- Your Office version. Open a Wordfile****> select File in the top left corner > select Account. Attach a screenshot of this entire page.****
- What exactly do you mean by “the zoom selection and the zoom slider are not highlighted”?
For example:
- Is there no Zoom option under the “View” tab at the top (the part marked in red in the figure)?
- Is there no Zoom slider at the bottom-right corner of the Word application (the part marked in green in the figure)? In this situation, please right-click the bottom bar and check Zoom and Zoom Slider options.

Please attach a screenshot of your issue so that we can understand it better.
- If you use Ctrl + mouse wheel, are you able to zoom in on the document?
Please understand that our initial response does not always resolve the issue immediately. Feel free to post if you need any further help.
Best wishes
Lucia Wu - MSFT | Microsoft Community Support Specialist