Microsoft Word does not have a setting to automatically put in two spaces at the end of a sentence, but you can set-up the grammar check to alert you when only one space is used.
You can set-up your grammar check to alert you when you have failed to place two spaces after a period. You can check this by clicking on Page Layout, then click on Margins.
Simply type your work then save. You should always come back to this site and download the latest version. It turns into an unusable zip file. In Spaces Required Between Sentences, select 2. Click OK to exit. Now when you type your paper and insert only one space after a period, you will see a small green squiggly where you fail to put in two spaces, once you do a grammar check of your paper.
Only use different typeface in figure descriptions to add style to the paper section 8. This setting will alert you to single spaces after a period with the green squiggle that shows when there is a grammar error in your paper.
In Wordclick on File, then click Options.