Attach your docm to this thread so we can work out why the code is being blocked. It is most likely because it has a setting added in the xml but we won't know for sure without seeing the file.

You could test whether it is your updated Windows causing the lock by making a new docm file and adding a simple macro to it and saving to your hard drive. Then put a copy on OneDrive and see if you can access the macros in the OneDrive version.

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Andrew Lockton
Chrysalis Design, Melbourne Australia