InDesign Files wont open after OS update and Adobe updates, files are in DropBox.

Select all files, right mouse click, context menu > make available offline. 

@MeghanKF

Please check "Make online-only" setting - it should be UNchecked / UNselected / OFF - so all your files are always stored locally. 

Have you tried copying them out of dropbox and onto your desktop?

in the future, to find the best place to post your message, use the list here, https://community.adobe.com/

p.s. i don't think the adobe website, and forums in particular, are easy to navigate, so don't spend a lot of time searching that forum list. do your best and we'll move the post (like this one has already been moved) if it helps you get responses.

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