Microsoft account sign-in fails in Windows, Microsoft Store, Xbox and Minecraft Launcher

thechillguy guychill 5 Reputation points
2026-08-25T07:49:03.8966667+00:00

Problem: Microsoft account sign-in fails across Windows, Microsoft Store, Xbox and Minecraft Launcher

I need help with a Microsoft account sign-in problem on my Windows PC. My Microsoft account itself is working: I can sign in normally on the Microsoft website through a browser. The problem only happens when I try to add or use the account inside Windows and Microsoft applications.

When I try to sign in in these places, the login does not complete and I am usually just sent back to the screen asking me to sign in again.

What is not working

Windows/Microsoft account sign-in

Microsoft Store

Xbox app

Minecraft Launcher

There is one specific error I can reproduce in Microsoft Edge. If I open Microsoft-related tabs/search pages in Edge and try to add my Microsoft account, Edge first asks me for my email address. When I enter it, the sign-in fails with:

“An unexpected error occurred.”

Error code: 1067
Tag: 7q6ca

I do not get the 1067/7q6ca error in the other applications. In the Microsoft Store, Xbox, Minecraft Launcher and Windows sign-in, if I choose “Use another account” and try to sign in, it either loops back to the beginning or the sign-in window simply disappears. The login never completes.

Minecraft

I cannot sign in to Minecraft Launcher. I enter my Microsoft account details, but instead of completing the login, it sends me back to the sign-in prompt. My Microsoft account works normally when I sign in on the Microsoft website.

What I have already tried

I have restarted the computer and tried troubleshooting the Microsoft Store and Xbox applications.

Yesterday, while troubleshooting, I also removed/uninstalled Microsoft Store and Xbox. I then tried to reinstall them, but the files/installers do not properly open. They appear to load for a while and then nothing happens.

Because several Microsoft services and applications are failing in a similar way, I am worried that something in Windows may be corrupted, possibly the Microsoft Store/AppX components or the Windows/Microsoft account authentication components.

I would like help diagnosing and repairing the problem. I would prefer not to reset or reinstall Windows unless it is genuinely necessary, because I want to avoid losing my files and settings.

Important information

To summarize:

Microsoft website in the browser: Microsoft account works normally.

Microsoft Edge → Microsoft-related tabs/search → Add account: asks for my email, then fails with “An unexpected error occurred,” Error 1067, Tag 7q6ca.

  • Windows account sign-in, Microsoft Store: choosing, Xbox and Minecraft Launcher: “Use another account” does not complete the login and either loops back to the beginning or the sign-in window disappears.

Microsoft Store/Xbox reinstall: after uninstalling them, the reinstall files do not properly open; they just appear to load and then nothing happens.

Could you please help me identify whether this is a Windows authentication, Microsoft Store/AppX, Xbox identity, or other Windows component problem and guide me through repairing it?

I am comfortable running diagnostic commands or providing error information from the PC. Please give me the steps one at a time so I do not accidentally remove or damage important Windows components.

Windows for home | Windows 10 | Windows Hello, lock screen and sign-in
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2 answers

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  1. Clary-N 15,730 Reputation points Microsoft External Staff Moderator
    2026-08-26T03:28:30.6+00:00

    Hi thechillguy guychill,

    Since the issue affects multiple Microsoft sign-in experiences, including Windows account sign-in, Microsoft Store, Xbox, Minecraft Launcher and Microsoft Edge, I'd like to suggest a few additional checks that may help identify whether a Windows authentication component is damaged.

    1.Repair Windows system files:

    Please open Command Prompt as Administrator and run the following commands one at a time:

    DISM /Online /Cleanup-Image /RestoreHealth

    After that completes, run:

    sfc /scannow

    These tools can repair corrupted Windows files that may affect Microsoft account authentication and Store-related components.

    2.Check the Microsoft Account Sign-in Assistant service:

    • Press Windows + R, type services.msc and press Enter.
    • Locate Microsoft Account Sign-in Assistant.
    • Verify that the service is running.
    • If it is stopped, start it and test the sign-in again.

    3.Perform a Clean Boot test:

    A third-party security application, VPN, network filter, or background service can sometimes interfere with Microsoft account authentication.

    • Press Windows + R, type msconfig and press Enter.
    • On the Services tab, check Hide all Microsoft services and select Disable all.
    • Open the Startup tab and select Open Task Manager.
    • Disable all non-essential startup items.
    • Restart the PC and test Microsoft account sign-in again.

    *Disclaimer: A "clean boot" starts Windows with a minimal set of drivers and startup programs. It helps to determine whether a background service is interfering with your game or program and to isolate the cause of a problem. 

    These steps of "clean boot" might look complicated at first glance. However, to avoid any trouble for you, please follow them in order and step-by-step so that it will help you get back on track. 

    Could you also share your Windows version and build number? You can get this by pressing Windows + R, typing winver and posting a screenshot or the information shown in the About Windows window. This may help determine whether the issue is related to a specific Windows 10 build.

    As a side note, Windows 10 has reached end of support for most devices. While this may not be the cause of the issue, it's worth keeping in mind during troubleshooting and considering an upgrade to a supported version of Windows if your device is eligible.

    I look forward to your update.

    If you have extra questions about this answer, please click "Comment".  

    Note: Please follow the steps in our documentation to enable e-mail notifications if you want to receive the related email notification for this thread.

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  2. AI answer

    2026-08-25T07:49:37.0533333+00:00

    Because the Microsoft account works in a browser but fails in Windows-based sign-in dialogs, the most useful next step is to determine whether the problem is limited to the current Windows profile or affects the whole system.

    1. Create a temporary local Windows account.
      • Go to Settings > Accounts > Other users > Add account.
      • Select I don’t have this person’s sign-in information.
      • Select Add a user without a Microsoft account.
      • Sign out and sign in to that new local profile.
    2. Test Microsoft sign-in from the new profile.
      • Try signing in to Microsoft Store, Xbox app, and the Windows account prompt there.
      • Expected result:
        • If sign-in works in the new profile, the original Windows profile’s authentication state is damaged.
        • If sign-in still fails there, the issue is system-wide.
    3. In Microsoft Edge, try the supported sign-in cleanup steps.
      • Go to edge://settings/profiles.
      • Remove the problematic profile.
      • Restart Edge.
      • Create a new profile and sign in again.
      • Caution: removing an Edge profile deletes local browsing data for that profile, including favorites, history, and passwords that are not synced.
    4. On Windows, clear stored Microsoft sign-in credentials.
      • Open Credential Manager from Control Panel.
      • Under Windows Credentials and Generic Credentials, remove entries related to MicrosoftAccount or login.microsoftonline.com.
      • Restart Microsoft Edge and test sign-in again.
    5. Update Microsoft Edge.
      • Open Edge and go to edge://settings/help.
      • Let Edge install the latest version.
      • Restart Edge.
    6. Check Windows account connection state.
      • Go to Settings > Accounts > Your info and verify the Windows account is connected.
      • If any work or school account is connected, go to Settings > Accounts > Access work or school and verify its state.
    7. Reset the Token Broker service.
      • Open Command Prompt as administrator.
      • Run: 
             net stop TokenBroker
     net start TokenBroker
      • Restart Microsoft Edge and test sign-in again.
    8. Run the Microsoft Account troubleshooter if available.
      • Go to Settings > System > Troubleshoot > Other troubleshooters.
      • Run Microsoft Account troubleshooter.
    9. If the problem is system-wide in the new profile too, use Windows repair reinstall.
      • Go to Settings > System > Recovery > Fix problems using Windows Update > Reinstall now.
      • This repairs Windows while keeping files, settings, and installed apps.
      • This is the supported next step when the issue is not limited to one profile.
    10. If account lockout or repeated password attempts are involved, run the Microsoft account sign-in helper.

    For the current symptoms, the strongest indicator is a damaged Windows authentication state in the user profile or a broader Windows account/authentication component issue. The profile test in step 1 is the cleanest way to separate those two cases before doing any repair reinstall.

    If support is needed after these tests, collect:

    • Edge version from edge://settings/help
    • Active policies from edge://policy
    • Network trace from edge://net-export/
    • Identity status from edge://identity-internals/
    • Windows version from Settings > System > About

    References:

    AI-generated content may be incorrect. Read our transparency notes for more information.

    Was this answer helpful?

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