Microsoft Confirms Recycle Bin Filename Bug Affecting All Supported Windows Versions After June 2026 Updates
Microsoft has acknowledged a bug in all supported Windows releases where the Recycle Bin confirmation dialog displays internal filenames instead of the original file names after installing the June 2026 security updates.
Microsoft has confirmed a confusing Windows bug that causes different filenames to appear in the confirmation dialog when permanently deleting a file from the Recycle Bin. The issue, documented in a Thursday update to the Windows release health dashboard, affects all supported Windows versions after installing the June 2026 security updates.
"When permanently deleting a single item from the Recycle Bin, the confirmation dialog displays the internal Recycle Bin filename (for example, $Rxxxxx.ext) instead of the original filename," the company explained. The Recycle Bin itself correctly shows the original filename, and restoring the item restores it using the original name.
The complete list of affected Windows versions spans both client and server platforms. On the client side, it includes Windows 11 versions 26H1, 25H2, 24H2, and 23H2, as well as Windows 10 version 22H2 and Windows 10 Enterprise LTSC 2021, 2019, and LTSB 2016. Server editions affected include Windows Server 2025, 2022, 2019, 2016, 2012 R2, and 2012.
While a permanent fix is not yet available, Microsoft has provided a temporary workaround for businesses. "A workaround is available for affected devices. To apply this workaround in your organization and mitigate the issue, please contact Microsoft's Support for business," the company noted. Microsoft engineers are actively working on a fix that will ship in a future Windows update.
This Recycle Bin bug joins a growing list of post-update issues Microsoft has acknowledged in recent weeks. Earlier this week, the company confirmed that the June 2026 updates block third-party apps from launching Word, Excel, PowerPoint, and other Office applications on Windows systems. On Thursday, Microsoft also fixed a known issue that caused the June 2026 security updates to fail on Windows Server 2016 systems lacking the May KB5087537 security update.
The bug is primarily a user-experience and trust issue rather than a security vulnerability, as it does not affect the actual deletion or restoration of files. However, it could cause confusion or accidental data loss if users are uncertain which file they are deleting. Microsoft has not disclosed how widespread the issue is, but the broad scope across all supported Windows releases suggests it affects a large number of enterprise and consumer systems.
The article from Cyber Security News adds that the bug is tracked against OS Build 26100.32995 under KB5094125 and was officially confirmed by Microsoft on June 18, 2026. It further details that a workaround is available only through Microsoft Support for Business, with no self-service fix released, and that a permanent resolution is planned for a future update without a specific timeline.