Comment by makomk

Worse still, the OneDrive client apparently left documents in the original locations which the Windows update would then delete:

> The current OneDrive client will set up KFR and then move any files from their original location to the new OneDrive location. Older versions of the OneDrive client, however, would set up KFR but leave existing files in the old location. The October 2018 Update would then destroy those files.

Microsoft's own software which they bundled with Windows 10 and nagged Windows 10 users to set up and use triggered a data loss bug which caused Windows 10 to delete those users' documents - all because Microsoft didn't think it through, didn't test properly, and didn't take any notice of data loss reports from external beta testers.