A file disappeared from my Windows folder without appearing in the Recycle Bin—what happened?

A file vanished directly from its Windows folder location and did not show up in the Recycle Bin, suggesting it was permanently deleted by bypassing the bin or removed by a system process. This could result from using Shift+Delete, a cleanup utility, antivirus quarantine, a failing drive causing data loss, or a bug in a program like OneDrive, but recovery will require third-party software or checking backups immediately.