Hi, I was given the ole, "It's a Microsoft issue from Dropbox, and it's a Dropbox issue from Microsoft One Drive (this is actually the ultimate culprit, but their support was useless), and it's an ASUS storage problem from Microsoft Word support 😡. Two wasted days and stress.
I finally somehow got through to Microsoft Windows support, who, after many hours realized it had to do with Microsoft One Drive archiving the files, screwing up their ability to sync with Dropbox or open correctly. I use Dropbox and everything opened and worked fine from my the Dropbox website, but the files were no longer being synced there.😫 and I couldn't work with them from my desktop.
She finally clicked on every folder and every subfolder, I have hundreds, clicked the Dropbox icon, and selected view offline. Then she realized she could click on the main folders and do it for all subfolders.
That worked. But she also did some other stuff that I couldn't follow to get them to sync with Dropbox again.
In my opinion, an intentional ploy by Microsoft to get you to pay for Windows Operating support (which she said she would wave because I was so hopping mad at this point) and to make you think One Drive is better than the other cloud storage options.
Microsoft is not what it once was, but what accessible alternatives do we have?
Good luck.