TL;DRMicrosoft’s June Patch Tuesday update KB5094126 fixed 208 flaws but broke the Recycle Bin, triggered BitLocker lockouts, and killed OneDrive on domain PCs.
Microsoft’s June 2026 Patch Tuesday update is causing problems across every supported version of Windows. KB5094126, released on June 9, patched a record 208 security vulnerabilities, but the update has introduced a string of bugs that range from cosmetic annoyances to machines locked out of their own drives.
The most visible issue affects the Recycle Bin. When a user tries to permanently delete a file, the confirmation dialog now displays an internal identifier like “$R4ABC12” instead of the actual file name. The correct name still appears in the Recycle Bin’s list view, and files restore with their original names intact.
But the garbled dialog makes it impossible to confirm which file is actually being deleted, a problem for anyone managing large numbers of files.
Microsoft confirmed the issue on June 18 and said a fix would not arrive until July 14. The company attributed the bug to a security hardening change that closed a 23-year-old unchecked-buffer vulnerability in the Windows Shell’s desktop.ini processor.
