An Alert About Building Blocks Appears When Word Quits
What happens: When you quit Word (by closing the last open document, for example), this alert message appears: “You have modified styles, building blocks (such as cover pages or headers) or other content that is stored in "Building Blocks". Do you wish to save changes to "Building Blocks"?” This alert message appears even though you didn’t modify content stored in Building Blocks.
What this means: By default, starting Contract Tools causes Word to load building blocks (search for “building block” in Word Help to learn more). When certain versions of Word 2016 and later (including Office 365) load building blocks, they incorrectly assume that built-in building blocks stored in a file named Building Blocks.dotx have been modified.
What you should do: You can mitigate this issue by configuring Contract Tools not to load snippets when it starts.
Choose Preferences from the pop‑up menu at the top of the Contract Tools pane to show the Preferences view.
Click Snippets Template File, and then deselect the “Load when Contract Tools starts” checkbox.
Note: Even if Contract Tools is configured not to load snippets when it starts, causing Word to load building blocks (for example, by showing the Snippets view, or by clicking the Quick Parts button in the Text group within the Insert ribbon tab) will cause the Building Blocks alert message to appear when Word quits.