Microsoft has officially confirmed multiple known issues affecting KB5094126, the mandatory June 2026 Patch Tuesday update for Windows 11. If you are running Windows 11 25H2 or 24H2, this update pushes your system to Build 26200.8655 or Build 26100.8655. While Microsoft has addressed two specific bugs in their documentation, community reports highlight a third, more severe issue impacting certain hardware configurations.
#1 Office apps crash when launched from third-party software
The most significant confirmed issue involves OLE automation, a technology that allows one application to control or launch another. After installing KB5094126, users report that Microsoft Office applications—including Word, Excel, PowerPoint, and Access—will crash if they are opened via a third-party program.
This does not mean Office is broken entirely. If you open Word directly from the Start menu or File Explorer, it will likely work fine. The problem arises when specialized software tries to trigger an Office document. For example, accounting platforms like CCH Engagement and Workpaper Manager, dental practice software such as Dentrix and Softdent, and reference managers like Zotero may fail to open their associated documents.
Microsoft has acknowledged that the update inadvertently broke this integration layer. If you rely on these workflows for your business or studies, expect interruptions until a fix is deployed. The company has not yet provided a specific workaround other than avoiding these integrations temporarily.
#2 Recycle Bin displays incorrect internal file names
A second confirmed bug affects the visual interface of the Recycle Bin. When you delete files, Windows stores them with internal identifiers (like $Rxxxxx.ext) while keeping metadata to display the original filename. KB5094126 has broken this display logic.
Instead of seeing “Report.docx” or “VacationPhoto.jpg,” users are now seeing cryptic system names in the Recycle Bin window. Microsoft assures users that this is purely a cosmetic issue; your files are not corrupted, and no data loss occurs simply because of this bug. However, it can cause confusion when trying to permanently delete or restore specific items.
This issue affects a wide range of systems, including Windows 11 versions 26H1, 25H2, 24H2, and 23H2, as well as Windows 10 22H2 and various Windows Server editions. Microsoft states that a workaround is in development but will not be available until July 14, 2026. Until then, exercise extreme caution when emptying the Recycle Bin to ensure you do not accidentally purge files you intended to keep.
#3 HP business PCs face BSODs and BitLocker recovery loops
While Microsoft has not yet officially documented this third issue, widespread reports indicate that HP business laptops are experiencing severe boot failures after installing KB5094126. Affected models include the HP EliteBook 840 G10, ProBook 460 G11, EliteBook 860 G10, ZBook series, and Engage One Pro POS systems.
Users are encountering Black Screen of Death (BSOD) errors, specifically code 0xc0430001, as well as being stuck in BitLocker recovery loops or facing Secure Boot verification failures. Investigations suggest the root cause may be related to EFI storage partition limitations or conflicts with Secure Boot trust paths.
If you are an IT administrator managing these HP devices, consider pausing the deployment of this update. For individual users already affected, some have found success by temporarily disabling Secure Boot in the BIOS/UEFI settings, reinstalling the update, and then re-enabling it. Expanding the EFI partition is another potential mitigation strategy if storage space is the bottleneck.
What this means for you: If you haven’t installed KB5094126 yet and use HP business hardware or rely heavily on third-party integrations with Office, it may be wise to wait. If you have already installed it, check your build version in Settings > System > About. If you are on Build 26200.8655 or 26100.8655 and experiencing these issues, document your errors and consider the workarounds above while waiting for Microsoft’s next patch cycle.
Source: Windows Latest
Over to you: Have you encountered the Office crash or Recycle Bin bug after installing KB5094126, or did your update go smoothly?
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