"KB5127936 broke PowerShell / Win+X Start Menu Admin shortcut also broke feedback hub

Repair or reset Feedback Hub from Windows Settings; uninstalling KB5127936 restored PowerShell, but it does not repair the Feedback Hub app’s package or data.

Repair Feedback Hub

1. Open Settings → Apps → Installed apps.
2. Find Feedback Hub, select the three-dot menu → Advanced options.
3. Select Terminate, then Repair.
4. Open Feedback Hub and verify that it displays the app—not Settings → Privacy & security → Diagnostics & feedback.
5. If it still redirects incorrectly, return to Advanced options and select Reset. Resetting clears the app’s local data. Microsoft documents Repair first and Reset when Repair does not resolve the problem.^1^

Update or reinstall the app

If Reset does not work:

1. Open Microsoft Store → Library → Get updates.
2. Install any update for Feedback Hub or Microsoft Store.
3. If no update fixes it, uninstall Feedback Hub from Settings → Apps → Installed apps, restart Windows, and reinstall it from Microsoft Store → Library. Microsoft’s Store-app procedure specifies updating the Store, repairing/resetting the app, and then reinstalling it if necessary.^2^

If Feedback Hub is absent from the library, search for Feedback Hub directly in Microsoft Store. Its Store package can be reinstalled there.^3^

About KB5127936 and PowerShell

KB5127936 applies to Windows 11 25H2 and 26H2. Its documented PowerShell change adds “5.1” to the Windows PowerShell and PowerShell ISE names; Microsoft notes that some existing Start-menu shortcuts might retain their previous names.^4^

Microsoft’s release-health record does not list the Win+X “command not recognized” or Feedback Hub behavior as a known KB5127936 issue. The documented known issue resolved by that update concerns Remote Desktop for non-administrators using Administrator protection.^5^

Because uninstalling the update already restored PowerShell, do not repeat the rollback. Record the following before installing a later cumulative update:

• Windows version and OS build from Settings → System → About
• The exact Win+X error text
• Whether Windows Terminal (Admin), Windows PowerShell 5.1, or both failed
• That removing KB5127936 restored the command
• The Feedback Hub redirect behavior

After Feedback Hub is repaired, search for an existing matching report and upvote it; otherwise submit a new report. Microsoft’s documented workflow is to search first and then create feedback if no matching issue exists.^6^

If Feedback Hub still cannot be repaired

Run Windows component repair from Command Prompt (Admin):

DISM.exe /Online /Cleanup-image /Restorehealth
sfc /scannow

Run DISM first, wait for successful completion, then run SFC to 100%. These tools repair missing or damaged Windows components.^7^

If Repair, Reset, reinstall, DISM, and SFC all fail, use an in-place repair installation while retaining files and apps rather than performing a clean installation.

References

1. [Windows 11](https://support.microsoft.com/windows/apps/repair-apps-and-programs-in-windows#summary)
2. [Windows 11](https://support.microsoft.com/accounts-billing/fix-problems-with-apps-from-microsoft-store)
3. Reinstalling Feedback Hub - Microsoft Q&A
4. October 28, 2026 — KB5127936 (OS Builds 26300.9818 and 26200.9818) Preview
5. Windows 11, version 25H2 known issues and notifications
6. Diagnostics, feedback, and privacy in Windows | Microsoft Support
7. Use the System File Checker tool to repair missing or corrupted system files | Microsoft Support