Fix Microsoft Security Admin Center Error When Blocking a Sender
Learn how to troubleshoot the operation failed error in the Microsoft Security admin center when blocking senders, including tenant-specific support steps.
Read more ›Security Issues
Clear security blocks in Office—Protected View, macros, Trusted Center, and unsafe document warnings—safely.
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2215 ResourcesWhy Document Authors Retain Access with Microsoft 365 Sensitivity Labels
Learn why document creators retain access to Word, Excel, and PowerPoint files after Microsoft 365 sensitivity labels restrict permissions, and how to resolve it.
Read more ›Fix Microsoft 365 School Account Cannot Be Accessed at Home
Having trouble logging into your Microsoft 365 school account from home? Learn how to troubleshoot network issues and resolve school conditional access policies.
Read more ›How to Disable Microsoft Authenticator Prompts for an Organization
Learn how to stop persistent Microsoft Authenticator prompts in your organization by checking Security Defaults, Conditional Access, and per-user MFA settings.
Read more ›Fix Microsoft Defender Freezing After Entering Social Security Number
Learn how to safely troubleshoot Microsoft Defender freezing or becoming unresponsive during identity verification when entering your Social Security Number.
Read more ›How to Fix Cannot Turn Off Controlled Folder Access in Windows 11
Learn why you cannot turn off Controlled Folder Access in Windows 11 and how to resolve the administrator restriction message related to organization policies.
Read more ›Is a Microsoft Defender Alert a Virus or a False Positive?
Learn how to determine if a Microsoft Defender Controlled Folder Access alert is a genuine virus threat or a false positive, and securely manage your applications.
Read more ›How to Fix DKIM Public Key TXT Record Publishing Error
Learn how to resolve the DKIM public key TXT record publishing error by verifying DNS records, fixing conflicts, and ensuring proper Microsoft 365 configuration.
Read more ›How to Block .zip and .mov Top-Level Domains in Microsoft Defender
Learn why blocking .zip and .mov top-level domains in Microsoft Defender is challenging and how to safely manage URL indicators without breaking file downloads.
Read more ›Microsoft Defender: Block Sender, Report Message, and Quarantine Explained
Understand the differences between Block Sender, Report Message, and Quarantine in Microsoft Defender to effectively manage spam, phishing, and tenant policies.
Read more ›How to Customize Microsoft Cloud App Security Notification Emails
Learn why Microsoft Cloud App Security sends generic notifications and how to troubleshoot missing custom message options when configuring policy alerts.
Read more ›How to Understand Office LTSC Administrator Controls and Privacy
Learn how IT administrators manage Office LTSC and Office Professional Plus through Group Policy, telemetry, and remote access, and understand your privacy.
Read more ›How to Restore Microsoft 365 Outbound Email After Spam Activity
Learn how to restore Microsoft 365 outbound email services after an account is restricted for spam activity. Discover steps for single mailboxes and entire tenants.
Read more ›What Does Active Organization Status Mean in Microsoft Entra ID?
Learn what an Active organization status and device object ID mean in Microsoft Entra ID, and discover the proper steps to take if your work laptop is stolen.
Read more ›How to Secure a Microsoft Outlook or Hotmail Email Alias
Learn how to secure your Microsoft Outlook or Hotmail email alias. Review sign-in activity, update security settings, and protect your inbox from unauthorized access.
Read more ›How to Use Conditional Access to Block Microsoft 365 Access Outside a Network
Learn how to configure Microsoft Entra Conditional Access policies to restrict Microsoft 365 access to trusted corporate network locations and block external IPs.
Read more ›Why Microsoft 365 Management Activity API Events Are Delayed
Learn why Microsoft 365 audit and sign-in events retrieved via the Management Activity API are delayed in your SIEM and how to troubleshoot the ingestion lag.
Read more ›How to Fix Sensitivity Labels Missing From Microsoft 365 Web Apps
Learn how to troubleshoot missing sensitivity labels in Microsoft 365 web apps like Word, Excel, and PowerPoint, and verify tenant configurations.
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