Error 0x80cf4017: Invalid Account Certificate
The account certificate is not valid and may be expired, 0x80cf4017.
Error Details
| Property | Value |
|---|---|
| Error Code (Hex) | 0x80cf4017 |
| Error Code (Dec) | -2133885929 |
Description
This error occurs when the account certificate used by the Intune client software is invalid or expired. While the error code is the same as general client software installation failures, this specific message indicates a certificate-related issue that requires client software update to resolve.
Common Causes
🔑 Certificate Validity Issues
Certificate problems often stem from outdated client software. Account certificates might be expired. Certificate validation could fail due to outdated components. Certificate management system might need update. Understanding certificate lifecycle is crucial for maintaining valid authentication.
📦 Client Software State
Software-related complications can affect certificate validity. Outdated client versions might use expired certificates. Certificate renewal might require software update. Version mismatches could prevent proper certificate handling. These software factors require systematic resolution.
Resolution Steps
1️⃣ Download Current Version
Obtain latest client software:
- Sign in to https://admin.manage.microsoft.com
- Navigate to Admin > Client Software Download
- Click Download Client Software
- Save installation package to local storage
2️⃣ Installation Process
Install updated client software:
- Locate downloaded installation package
- Run installer with administrative privileges
- Follow installation wizard steps
- Monitor for successful completion
3️⃣ Certificate Validation
After installation:
- Verify new certificate deployment
- Check certificate validity period
- Test client authentication
- Monitor for certificate errors
Best Practices
👨💻 For IT Administrators
Effective certificate management requires attention to software currency. Implement comprehensive certificate monitoring. Maintain documentation of certificate lifecycles. Develop clear procedures for client updates. Create systematic approaches to certificate verification. Consider implementing automated validity monitoring.
🔄 For Software Management
Successful certificate management requires proper version control. Develop clear processes for software updates. Maintain accurate documentation of certificate requirements. Implement thorough testing procedures for authentication. Create comprehensive documentation of update steps.
Troubleshooting Tips
When addressing certificate issues, focus on client software updates. Always use latest software version. Verify certificate deployment after update. Test authentication functionality. Monitor certificate status carefully.
Certificate updates require attention to detail. Previous software should be removed. Installation requires admin rights. Consider authentication requirements. Monitor certificate validation status.
Additional Notes
💡 Software update resolves certificate issues
🔑 Certificate validation important
⚠️ Admin rights needed
📦 Version currency critical
Related Links
Update Process Guide
-
Software Acquisition
- Access admin portal
- Download latest version
- Verify package integrity
- Document version info
-
Installation Process
- Run as administrator
- Follow wizard steps
- Monitor progress
- Check completion
-
Certificate Verification
- Check certificate status
- Verify validity period
- Test authentication
- Document results
Always update client software from the Intune admin portal to ensure proper certificate deployment and validation.