Microsoft’s OneDrive cloud storage service has drawn renewed criticism for a particularly frustrating behavior pattern that can leave users without access to their local files after the service automatically activates during Windows updates.

Author Jason Pargin recently outlined the problem: Windows updates can enable OneDrive backup without any plain-language warning or opt-out option, and the service then quietly begins uploading the contents of a user’s computer to Microsoft’s servers. The trouble begins when users attempt to disable OneDrive Backup. According to Pargin, turning off the feature can result in local files being deleted, leaving behind only a desktop icon labeled “Where are my files?”

Users can redownload their files from Microsoft’s servers, but attempting to then delete Microsoft’s copies triggers another deletion of the local files. The only workaround requires users to hunt down YouTube tutorials that walk through the steps, as the relevant options are buried in menus and none clearly describe their function in plain English. Pargin compared the experience to a ransomware attack.