The June 2026 Windows updates introduced a bug affecting the Recycle Bin confirmation dialog. When users permanently delete a single item from the Recycle Bin, the confirmation prompt shows the internal system filename rather than the original filename. This discrepancy could cause confusion but does not affect the actual file display or restoration. The issue impacts all supported Windows client versions including Windows 11 (26H1, 25H2, 24H2, 23H2), Windows 10 (22H2, Enterprise LTSC 2021, LTSC 2019, LTSB 2016), and server versions including Windows Server 2025, 2022, 2019, 2016, 2012 R2, and 2012. Microsoft has acknowledged the bug on its Windows release health dashboard and is developing a fix to be delivered in a future update. A temporary workaround is available for business customers via Microsoft Support.

The bug causes the confirmation dialog for permanent deletion from the Recycle Bin to display internal filenames instead of the original filenames, potentially confusing users during file deletion confirmation. However, the Recycle Bin interface and file restoration processes remain unaffected and correctly show original filenames. There is no indication that this bug leads to data loss, security breaches, or exploitation. No known exploits are reported in the wild.

Microsoft is actively working on an official fix to be released in a future Windows update. Until then, a temporary workaround is available for affected business customers by contacting Microsoft Business Support. Users should follow guidance from Microsoft Support for applying this workaround. No other immediate action is required.