Persistent SystemSettings.exe Crash (SettingsHandlers_nt.dll - Exception 0xc0000005) on Lock Screen Settings Page

Question

Persistent SystemSettings.exe Crash (SettingsHandlers_nt.dll - Exception 0xc0000005) on Lock Screen Settings Page

amralaa-8729 795

Hello

I am experiencing an intermittent crash with the Settings app (SystemSettings.exe) on Windows 11 Pro when navigating to or interacting with the Lock Screen settings page (Settings > Personalization > Lock screen), specifically around the Lock Screen Status / Widgets and Cloud Suggestions section.

The issue periodically disappears and reoccurs automatically, which strongly points to a cloud-side content sync or background task update triggering a memory conflict.

Problem Details & Crash Log (Reliability Monitor):

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Observed Behavior:

Navigating to Settings > Personalization > Lock screen or clicking on the toggle/selector for lock screen status/widgets causes SystemSettings.exe to close abruptly.

The crash is driven by an Access Violation (0xc0000005) inside SettingsHandlers_nt.dll at offset 000000000003fca8.

Performing a System Restore to a clean state temporarily resolves the issue, but it reoccurs after about 1–2 hours as background cloud content tasks (ContentDeliveryManager) refresh user profile settings.

Troubleshooting Steps Already Attempted:

System Integrity Checks: Executed sfc /scannow and DISM /Online /Cleanup-Image /RestoreHealth. Both reported clean results with no corruption found in system components.

System Restore: Restored the OS to a clean state; the page functioned normally for a brief period before crashing again after background sync occurred.

App Reset: Reset and re-registered Microsoft.Windows.ContentDeliveryManager and Windows Web Experience Pack.

It appears that an unexpected cloud payload or registry parameter in HKCU\Software\Microsoft\Windows\CurrentVersion\ContentDeliveryManager triggers a null pointer or memory violation inside SettingsHandlers_nt.dll when the UI attempts to parse the widget state.

Is there an upcoming cumulative update or server-side fix addressing this specific Bucket ID ([Moderator Note: Personal Info Removed])?

Thank you for your assistance.

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Answer 1

Clary-N 17,335 Microsoft External Staff Moderator

Since this is a public forum, we will hide your personal identifiable information, and I have sent that image of yours containing your personal identifiable information in a private message so we can work together to resolve the issue. Also, please check your private message in case you want to share another screenshot to avoid leaking your PII by click on the Message button as show below

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Hi amralaa-8729,

Thanks for sharing such a detailed report and the Reliability Monitor information. You’ve already completed the main system checks, restored the system, and re-registered the related components, so I don’t want to send you through the same steps again.

The report confirms that SystemSettings.exe is crashing in SettingsHandlers_nt.dll with exception code 0xc0000005. However, the crash details alone don’t confirm whether ContentDeliveryManager or cloud-delivered content is the underlying cause.

To help narrow this down, could you confirm a few details?

What Windows version and OS build are shown when you press Windows key + R, enter winver and select OK?
Are you using a standard public build or an Insider build?
Which cumulative update appears most recently under Settings > Windows Update > Update history?
Does the Lock screen page also crash in a newly created local user account?
Does it still crash if you temporarily disconnect from the Internet before opening that page?

The new-account test would be particularly helpful because the registry path you mentioned is under HKEY_CURRENT_USER. If the page works in another account, that would point more toward something specific to the original user profile. If it crashes in both accounts, the issue is more likely system-wide.

If the crash continues, I’d recommend reporting it through Feedback Hub > Report a problem > Desktop environment > Settings. Use Recreate my problem while reproducing the crash and include the exception code, faulting module, affected Settings page and a link to this thread.

Please share what you find from the new-account and offline tests. Those results should help clarify whether this is tied to the user profile, online content delivery or the wider system.

amralaa-8729 795 Reputation points

2026-10-14T21:00:53.4566667+00:00

Thank you for the guidance. Here are the final test results from my end:

Windows Version & Build: Windows 11 Pro, Version 25H2 (OS Build 26200.9711 - Public Stable Release).

Offline Test Result: Disconnecting from the internet completely before opening Settings > Personalization > Lock screen did not prevent the crash. The issue persists offline.

New Local Administrator Account Test: I created a brand new Local Administrator account (TestUser) and tested the Lock Screen settings page there as well. The exact same crash occurs in the new account.

Conclusion:

Since the crash happens across all user profiles and even when disconnected from the internet, this confirms that the issue is system-wide rather than isolated to a corrupted user profile cache (HKCU/AppData). It points directly to a bug or memory handle collision inside SettingsHandlers_nt.dll (Offset 000000000003fca8, Exception 0xc0000005) within the current OS Build (26200.9711).

Please let me know if there are any known hotfixes, registry workarounds, or pending cumulative update patches addressing this Bucket ID ([Moderator Note: Personal Info Removed]).

Thank you for your support!
amralaa-8729 795 Reputation points

2026-10-14T21:20:17.6933333+00:00

Please, what is the solution?
amralaa-8729 795 Reputation points

2026-10-14T22:13:51.9566667+00:00

Important Update / Precise Isolation:

Upon further testing, I noticed that all other Lock Screen settings work completely fine (such as changing the background picture, "Show background picture on sign-in screen", and main "Widgets").

The crash (SettingsHandlers_nt.dll - Exception 0xc0000005) is 100% isolated and triggered specifically when toggling the "Suggest widgets for your lock screen" option. Toggling or interacting with this particular setting instantly closes the Settings app.

This confirms that the issue is not with the entire Lock Screen page itself, but specifically with the handler/API call associated with fetching/toggling the Lock Screen widget suggestion feeds inside SettingsHandlers_nt.dll.
Clary-N 17,335 Reputation points Microsoft External Staff Moderator

2026-10-15T08:17:03.89+00:00

Hi amralaa-8729,

Thanks for the additional testing. You’ve narrowed this down very clearly, especially with the crash occurring specifically when Suggest widgets for your lock screen is toggled.

Since it happens in a new local account as well as offline, I don’t think there’s much value in repeating the earlier profile or connectivity troubleshooting.

One additional step worth considering is an in-place repair reinstall of Windows 11. This reinstalls the Windows system components while preserving your installed apps, personal files, and settings. Since the crash is occurring within SettingsHandlers_nt.dll, this can help rule out damaged or inconsistent Windows components.

On Windows 11, you can first check:

Settings > System > Recovery > Fix problems using Windows Update > Reinstall now

Microsoft states that this option reinstalls the current Windows version, repairs system files and components, and preserves apps, files, and settings.

I’d still recommend backing up anything important beforehand.

If the same Suggest widgets for your lock screen toggle continues to crash Settings after the repair reinstall, I’d avoid making undocumented registry changes and include that result in the Feedback Hub report. At that point, it would be useful evidence that reinstalling the current Windows components did not resolve the behavior.
Clary-N 17,335 Reputation points Microsoft External Staff Moderator

2026-10-16T07:13:21.2066667+00:00

Hi amralaa-8729,

Thanks for marking my answer as accepted. I’m glad the information was helpful.

If anything else comes up or you have any other questions, please don’t hesitate to reach back out. I’ll be happy to assist.