Account creation has been blocked - teams

Question

Account creation has been blocked - teams

William 0

Account creation has been blocked

We have detected some unusual activity and have blocked the creation of a Microsoft account.

I have searched the web, flushed my cache, no VPN and just using my standard internet provider, cannot find a way to register an account for my backup non-Microsoft account.

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2 answers

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Answer 1

Roebe Ta 1,025 Independent Advisor

Hello @William,

Based on the error message you shared, Microsoft's automated security systems have detected activity that triggered a risk check and temporarily blocked the creation of a new Microsoft account.

Based on the information provided, could you share a bit more about your setup?

As this thread is under the business tag, can you confirm if you're trying to create a personal Microsoft account or a work/school account?
Are you signing up directly from the Microsoft account sign-up page or through the Microsoft Teams sign-up process?
Does the issue occur on multiple devices and browsers, or only on a specific device?
Could you please describe the exact steps you are taking to create the account?
Are you receiving any additional error codes or reference IDs along with the message?
You mentioned that you are trying to "register an account for my backup non-Microsoft account." Could you please clarify what you mean by this? Are you trying to:
- Create a new Microsoft account using an existing third-party email address (such as Gmail, Yahoo, etc.)?
- Add a backup email address to an existing Microsoft account?
- Create a completely new Microsoft account for backup purposes?

In the meantime, please review the troubleshooting suggestions provided in the AI response above, particularly using an InPrivate/Incognito browser session, and attempting the registration again after some time.

Once you provide the additional information, I may be able to better determine whether this is related to Microsoft account creation, Teams sign-up, or a security-related block that requires assistance from Microsoft Support.

I look forward to your update.

William 0 Reputation points

2026-09-02T11:05:20.8+00:00

Giving up, these cut/paste responses really dont help.
Roebe Ta 1,025 Reputation points Independent Advisor

2026-09-03T10:38:30.54+00:00

Thank you for your honest feedback, and I completely understand your frustration. I can appreciate how discouraging it is when you've already spent time trying various troubleshooting steps and still cannot create the account.

The reason I asked those questions is not to provide a generic response, but to better understand exactly what type of account you're trying to create and where the process is failing. Depending on whether you're creating a personal Microsoft account, signing up through Teams, using an existing third-party email address, or attempting to access a work or school service, the available support channels and troubleshooting options can be quite different.

Since the account creation is being blocked by Microsoft's automated security systems, and there is limited visibility available to us in this public forum, I would recommend contacting Microsoft Support directly so they can investigate the block from their side.

To help point you to the correct support team, could you please confirm whether you currently have any Microsoft subscription associated with this email address or another account (for example, Microsoft 365 Personal/Family, Microsoft 365 Business, Teams Essentials, or any other paid Microsoft service)?

Once I know whether a subscription is involved, I can provide the most appropriate support path.

I appreciate your patience and look forward to your reply.

Answer 2

This block is typically an automated security restriction triggered by unusual activity, repeated sign-up attempts, the network being flagged, or browser/device signals.

Try this in order:

Stop attempting sign-up for at least 24 hours. Repeated attempts can keep the block active.
Use a different network. Switch from the current connection to another Wi-Fi network or mobile data.
Try a different verification path or method if one is offered during sign-up.
Use a normal browser session, not repeated private/incognito attempts.
If the block does not clear after 24 hours, wait longer. In some cases it can take up to 1 week.
Use the Microsoft sign-in helper to identify the issue and available support options: Start

If the goal is to use Teams with another organization as a guest and the account is a work or school account, password reset can unblock a risky guest account if self-service password reset is enabled. Use the Password reset portal. If that does not work, the organization IT administrator must assist.

References: