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Microsoft 365 Global Administrator locked out – Error 399287

Hello, I am the only Global Administrator of my Microsoft 365 Business tenant. I am completely locked out of my administrator account because Microsoft blocks my SMS verification. I receive error code 399287 (BadReputation) before an SMS is even…

Microsoft Security | Microsoft Authenticator
asked 2026-11-07T16:32:05.31+00:00
edited the question 2026-11-07T17:32:39.7766667+00:00
Ryan-N 16,940 Reputation points Microsoft External Staff Moderator
1 answer

Unable to delete a stale/duplicate device record from Microsoft Intune – Old record returns 404 Not Found

Environment: Microsoft Intune Microsoft We recently enrolled a Windows laptop into Microsoft Intune using the Windows Out-of-Box Experience (OOBE) with a Microsoft 365 Business Premium licensed user account. During the initial setup, the user signed…

Microsoft Security | Intune | Enrollment
asked 2026-11-07T17:28:55.1833333+00:00
cyber punk 40 Reputation points
answered 2026-11-07T17:29:59.5233333+00:00

AI answer

1 answer

my pc security

can I get microsoft to check all of my pc security to make sure its up to date

Microsoft Security | Microsoft Defender | Other
asked 2026-11-07T16:10:24.6866667+00:00
jack haight 0 Reputation points
answered 2026-11-07T16:10:59.64+00:00

AI answer

2 answers

Personal Azure account locked out after phone migration. Azure MFA still bound to old Authenticator device.

Hi, I previously used Azure with my personal email account (@outlook.com). After switching phones and reinstalling Microsoft Authenticator, I got into my microsoft account and set my MFA back up. All microsoft services work just fine with my…

Microsoft Security | Microsoft Entra | Microsoft Entra ID
asked 2026-11-07T03:34:47.01+00:00
Whit Matthews 0 Reputation points
answered 2026-11-07T16:09:15.3833333+00:00
Whit Matthews 0 Reputation points
0 answers

URGENT: Azure Government GCC High tenant admin lockout - AADSTS53000 - Data Protection assistance needed

I am the authorized administrator of a Microsoft 365 GCC High / Azure Government environment. We are experiencing a complete administrator lockout following security configuration changes. Current conditions: Azure Government portal authentication is…

Microsoft Security | Microsoft Entra | Microsoft Entra ID
asked 2026-11-07T15:50:46.9066667+00:00
Scott Larkin 0 Reputation points
commented 2026-11-07T15:58:41.6866667+00:00
Scott Larkin 0 Reputation points
1 answer

Personal Account Being Treated Like an Enterprise Account: Unable to Log In

I have an ongoing problem that my Personal Azure account (gmail) is being treated like it is an enterprise account which is preventing me from logging into my Azure account.

Microsoft Security | Microsoft Entra | Other
asked 2026-10-16T17:57:14.9266667+00:00
Lars Liden 0 Reputation points
commented 2026-11-07T15:05:29.8433333+00:00
Heimerdinger 1,465 Reputation points Independent Advisor
2 answers

Impossible de retrouver mon mot de passe Windows

Madame, Monsieur, J'ai perdu mon mot de passe et on me demande de le changer et cela m'est impossible mon ordinateur est bloqué. Puis-je avoir une aide rapidement ?

Microsoft Security | Microsoft Identity Manager
asked 2026-11-07T14:02:42.4833333+00:00
Diane Gazeaux 0 Reputation points
answered 2026-11-07T14:47:33.3833333+00:00
Diane Gazeaux 0 Reputation points
1 answer

transfer my accounts to my new phone

I have gotten a new phone because my Face ID was failing on my old one and I have three accounts on my old Authenticator setting them up again could take months. How can I transfer them to my new phone?

Microsoft Security | Microsoft Authenticator
asked 2026-11-07T14:26:48.2366667+00:00
Hobley, Alethea 0 Reputation points
answered 2026-11-07T14:27:28.83+00:00

AI answer

0 answers

microsoft account was hacked, microsoft sign in helper does not detect an issue

A hacked hacked into my other microsoft account, deleted the phone number and changed the email address to another email, now i am unable to login to recover the account. When i try to open https://account.live.com/username/recover, and key in the email…

Microsoft Security | Microsoft Authenticator
asked 2026-11-07T12:21:29.97+00:00
wtf rykm 0 Reputation points
2 answers One of the answers was accepted by the question author.

My account has been accessed and the email has been changed and i dont have access anymore.

But i have proof of this happening and they have taken my account but i have a minecraft java edition order email to show proof of me purchasing it so if i can be able to get java back because i got hacked that would be really good Thank you,

Microsoft Security | Microsoft Defender | Other
asked 2026-11-06T20:39:40.79+00:00
Camil El Khabbaz 20 Reputation points
commented 2026-11-07T11:34:05.2566667+00:00
Camil El Khabbaz 20 Reputation points
2 answers

How to move Authenticator to my new phone

I had to get a new phone and now I can not log into my work apps because it is sending the code to my old phone which I don’t have

Microsoft Security | Microsoft Authenticator
asked 2026-11-06T13:12:57.6566667+00:00
Chris Hernandez 0 Reputation points
answered 2026-11-07T11:16:21.8433333+00:00
Daniel-Vo 7,980 Reputation points Microsoft External Staff Moderator
1 answer

Verification

I lost my number and now I can’t open my account. How can I change my verification method.

Microsoft Security | Microsoft Authenticator
asked 2026-11-07T10:08:47.86+00:00
Ma Concepcion Adante 0 Reputation points
answered 2026-11-07T10:09:04.5333333+00:00

AI answer

2 answers One of the answers was accepted by the question author.

difficulties signing into my university Microsoft account with my laptop

Can someone please help I am experiencing difficulties signing into my university Microsoft account and have been trying to resolve the issue for several hours without success. I am able to enter my password correctly and complete the verification…

Microsoft Security | Microsoft Authenticator
asked 2026-11-07T08:22:33.4533333+00:00
Teedow 0 Reputation points
answered 2026-11-07T08:31:34.98+00:00
Teedow 0 Reputation points
2 answers One of the answers was accepted by the question author.

Upgraded from Business Standard to Premium - how to add devices

I updated our Microsoft Business Standard account to Business Premium and am having difficulty connecting our devices. Can someone please assist. I assumed that the devices that were already with the Standard account would also show in the Premium. …

Microsoft Security | Intune | Enrollment
asked 2026-10-29T16:13:03.6433333+00:00
Barbara MacArthur 20 Reputation points
commented 2026-11-07T07:29:19.6566667+00:00
takeig 0 Reputation points
1 answer

Enabling a device

I am the admin for my organization but i cant enable a device that i disabled

Microsoft Security | Microsoft Entra | Microsoft Entra ID
asked 2026-11-06T15:50:11.21+00:00
Manny Agahi 0 Reputation points
answered 2026-11-07T07:25:53.6733333+00:00
Vasil Michev 128.7K Reputation points MVP Volunteer Moderator
2 answers

has something changed with Register Security Info (security info page)

We are looking for clarification regarding a change in Microsoft Entra Conditional Access behavior related to phishing-resistant MFA onboarding. A few months ago, users targeted by a Conditional Access policy requiring Phishing-Resistant MFA…

Microsoft Security | Microsoft Entra | Microsoft Entra ID
asked 2026-07-29T20:43:37.5433333+00:00
Neha Chandna 5 Reputation points
edited a comment 2026-11-07T06:52:48.3133333+00:00
Sean Kearney 0 Reputation points
1 answer

Global Admin Account Locked in MFA Registration Loop

Hi Microsoft Support Team I am unable to access my Microsoft 365 tenant because my Global Administrator account is locked due to Multi-Factor Authentication (MFA). Details: Tenant domain: please email to us we will provide the info Admin account:…

Microsoft Security | Microsoft Entra | Microsoft Entra ID
asked 2026-05-13T02:53:55.71+00:00
Movaci Security 0 Reputation points
commented 2026-11-07T06:40:16.6766667+00:00
JuliaMarvin 23,890 Reputation points Volunteer Moderator
1 answer

SharePoint folder application permission assignments: does delegated Files.ReadWrite plus human ownership suffice?

I am seeking a documented least-privilege clarification for Microsoft Graph v1.0 and SharePoint Online, without tenant diagnostics or access. Scenario: a separate human administrator provisioning client would create two application resource assignments…

Microsoft Security | Microsoft Graph
asked 2026-11-07T06:19:54.4833333+00:00
Pauline Price 0 Reputation points
answered 2026-11-07T06:21:30.55+00:00

AI answer

0 answers

Copia de seguridad autenticator

Necesito ayuda para recuperar mis claves, desintale la aplicación autenticator por error, al volver a instalarla y recuperar la copia desde la cuenta me dice que no existe, pero no es la primera vez que la recuperó asi que se que si existe una copia, no…

Microsoft Security | Microsoft Authenticator
asked 2026-11-07T06:08:15.52+00:00
Jose Carlos Ramos Lopez 0 Reputation points
2 answers

How do I fix TrojanDownloader:JS/FakeUpdates.D?

Defender Scan says I had an TrojanDownloader:JS/FakeUpdates.D infection.

Microsoft Security | Microsoft Defender | Other
asked 2026-11-07T03:43:34.61+00:00
Tony C 0 Reputation points
answered 2026-11-07T06:01:35.46+00:00
_AW_ 70,241 Reputation points Volunteer Moderator