53003
Moderate
Microsoft · Windows
Azure AD/Entra sign-in blocked by Conditional Access policy.
Quick Answer
Error code 53003 on your Microsoft Windows means: Azure AD/Entra sign-in blocked by Conditional Access policy.. This is usually fixable — see the step-by-step guide below.
Affected Models
Applies to all models
Likely Causes
How to Fix It
1
Open Microsoft Entra sign-in logs and inspect Conditional Access failure details.
2
Ensure device is enrolled/compliant in Intune if required.
3
Complete MFA and required remediation prompts.
4
Confirm user/location/app are allowed by policy.
5
Coordinate with tenant admin to adjust policy scope if needed.
Pro Tip
This fix requires some technical knowledge. If you're unsure about any step, consider contacting support or a qualified technician.
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