How to fix FraudThrottle.htm#1066 error?

The error “FraudThrottle.htm#1066” indicates that access to the Microsoft account/OneDrive has been blocked due to suspicious or policy‑related activity. End users cannot clear this block themselves; only Microsoft’s automated systems or support can review and remove it.

Based on the available guidance, the practical steps are:

1. Check whether the Microsoft account itself is blocked
   • If sign‑in to Outlook.com or the Microsoft account dashboard is also affected, use the official unblock flow: open the Sign‑in Helper and follow the prompts to verify identity and unblock the account.
   • Article: Unblock my Outlook.com account explains that accounts are blocked when unusual sign‑in activity is detected and that unblocking requires completing the security verification steps.
2. If OneDrive shows “Your account is currently unavailable”
   • The OneDrive account may be temporarily blocked due to suspicious activity or a possible violation of the Microsoft Services Agreement.
   • Go to the Microsoft services account reset page and follow the on‑screen instructions to check status and attempt reactivation.
   • If the block is tied to recent verification or heavy sharing, it may clear automatically within 24 hours.
3. If the block is due to an Acceptable Use Policy (AUP) issue (for work/school tenants)
   • For organizational (Microsoft 365 work or school) tenants, when SharePoint/OneDrive are blocked for AUP violations, the resolution is only through Microsoft 365 admin support.
   • An admin must open the SharePoint Acceptable Use Policy page in the Microsoft 365 admin center and select Contact support to submit a ticket and request restoration.
4. If sign‑in attempts have been throttled
   • If there have been many failed sign‑in attempts, wait at least 24 hours with no further attempts, then try again.
   • If the account still appears blocked after that, use the unblock flow above and, if needed, submit a Request for Account Reinstatement as described in the Outlook.com unblock article.
5. If the account is compromised or fully locked and normal recovery fails
   • For personal Microsoft accounts, recovery is handled only through the official account recovery and security channels. If the recovery form and unblock flows fail and security info has been replaced, there is no alternate manual override documented.
   • If the account owner is deceased or incapacitated and legal access is required, Microsoft can only consider releasing data after being served with a valid subpoena or court order, as described in the “If you need access to the account, seek legal guidance” article.

Given the emotional importance of the photos, the immediate actions are:

• Use the Sign‑in Helper to unblock the Microsoft account if Outlook.com/Microsoft account sign‑in is affected.
• Use the Microsoft services account reset page to check and attempt to reactivate OneDrive if it shows as unavailable.
• If this is a work/school account and the message appears in a Microsoft 365 tenant, contact the organization’s Microsoft 365 admin and have them open a support ticket from the Microsoft 365 admin center (SharePoint Acceptable Use Policy page → Contact support).
• If none of these flows restore access, continue working with Microsoft Support via the official channels referenced in the unblock and recovery articles; end users cannot directly override a fraud/AUP block.

References:

• Unblock my Outlook.com account
• Reactivate an account that has been blocked
• Error "This page has been blocked as it violates the Acceptable Use Policy"
• If you need access to the account, seek legal guidance
• Why can't I log in to my Outlook account? - Microsoft Q&A
• my microsoft account has been compromised - Microsoft Q&A
• Acceptable Use Policy violation notice on Microsoft 365 Developer E5 sandbox - SharePoint read-only at farm level - Microsoft Q&A