Originally Posted by Ulodesk

My first guess would be that this is a style problem. If you have applied Word styles in your document, this could have been an inadvertent error. If you are not familiar with styles and don't use them, be aware that they exist and affect your document anyway, and, if you copied and pasted-in text from another document, you may have imported one without realizing it.

With your cursor in a paragraph that exhibits this issue, open the Styles pane by clicking on the tiny gray arrow at bottom right of the Styles section of your Ribbon's Home tab, and scroll to find the Style with a box around it, indicating that this is the paragraph style in use. If it is not the style called Normal, right-click on it and select Modify, then Format/Tabs. Clear the offending tab stops and set any you would prefer. This should
clear other paragraphs similarly affected.

If the paragraph is Normal style, it's likely that most of your paragraphs are also Normal style, no matter what they look like. you can perform the same action as above, resetting the style's characteristics, but it's possible that this will affect headings or other parts of your document.

One other thing you might do is option Word options, Advanced tab, and clear the check box in the first section that reads "Keep track of formatting."

I would encourage you to look up Styles in Word, to get a better understanding of how they work.

I hope this solves your problem.

Best,
Ulodesk