Get an error code that Interface not registered for Paint etc. can you help

Update, repair, and—if necessary—reinstall Paint, because the screenshot shows the packaged Paint executable failing and restarting Windows has not corrected it.

1. Update Paint and Microsoft Store

1. Open Microsoft Store.
2. Select Library.
3. Select Get updates.
4. Allow updates for Paint and Microsoft Store to finish.
5. Try opening Paint from Start rather than from an existing shortcut.

Microsoft recommends Store updates as an initial fix for Windows 11 Store-app problems.^1^

There is no official Microsoft notice in the available information establishing Paint 11.2609.401.0 as having a restart-specific “Interface not registered” defect. The message can occur when Windows cannot correctly activate the app package or one of its registered components, but the error alone does not identify which component is damaged.

2. Repair, then reset Paint

1. Open Start → Settings → Apps → Installed apps.
2. Find Paint, select the three dots, and choose Advanced options.
3. Select Terminate if that option appears.
4. Select Repair, then test Paint.
5. If it still fails, return to the same page and select Reset.

Reset may remove Paint’s local app data and preferences, although it does not delete normal image files stored elsewhere. Windows documents Repair first and Reset if Repair does not resolve the problem.^2^

3. Reinstall Paint

If Reset does not help:

1. Go to Settings → Apps → Installed apps.
2. Find Paint → three dots → Uninstall, and confirm.
3. Reinstall Paint using Microsoft’s official Paint installer or from Microsoft Store → Library.
4. Open Paint from Start and verify that the error is gone.

Microsoft’s supported uninstall/reinstall procedure applies to Windows 10 22H2 build 19045.3758 or later, including Windows 11.^3^

If other apps show the same error

If Notepad, Outlook, Calculator, or other packaged Microsoft apps also report “Interface not registered,” this is unlikely to be limited to Paint. A closely matching Windows 11 case recommends testing a new user profile to distinguish user-profile corruption from a system-wide problem.^4^

Create a temporary local account:

1. Open Settings → Accounts → Other users.
2. Select Add account.
3. Choose I don’t have this person’s sign-in information → Add a user without a Microsoft account.
4. Sign out, sign in to the new account, and test Paint.

• Paint works there: the problem is associated with the original Windows profile.
• Paint fails there too: proceed with the Windows repair below.

Nondestructive Windows repair

For a system-wide failure, reinstall the current Windows version while retaining files, apps, and settings:

1. Connect the PC to power and the internet.
2. Open Settings → System → Recovery.
3. Under Fix problems using Windows Update, select Reinstall now.
4. Approve the reinstall and restart when it completes.

This repairs Windows system files and components without removing installed applications, personal files, or settings.^5^

If Reinstall now is absent, it can be because the PC is managed by work or school, Windows is older than the supported Windows 11 release, or the required February 2024 or later update is missing.^5^

References

1. [Windows 11](https://support.microsoft.com/accounts-billing/fix-problems-with-apps-from-microsoft-store)
2. [Windows 11](https://support.microsoft.com/windows/apps/repair-apps-and-programs-in-windows#summary)
3. Uninstall and reinstall Paint and Snipping Tool - Microsoft Support
4. Interface not registered error on Paint, Notepad, Outlook and crossdeviceresume.exe - Microsoft Q&A
5. Fix issues by reinstalling the current version of Windows | Microsoft Support