Error 0x80073CFF: Sideloading Not Enabled
To install this app, you must have a sideloading-enabled system.
Error Details
| Property | Value |
|---|---|
| Error Code (Hex) | 0x80073CFF |
| Error Code (Dec) | -2147009281 |
Description
This error occurs when attempting to install an app on a system that doesn't have the required sideloading capabilities enabled. The installation requires either a domain-joined device with the AllowAllTrustedApps policy enabled or a device with a Windows Sideloading license and the same policy enabled. Additionally, the app package must be signed with a trusted signature.
Common Causes
🔒 Policy Configuration Issues
Sideloading restrictions often stem from policy configuration states. AllowAllTrustedApps policy might not be enabled. Domain join status could affect policy application. Group Policy settings might restrict sideloading capabilities. Understanding policy requirements is crucial for enabling proper app installation.
📱 System Requirements
System configuration factors can prevent sideloading functionality. Windows Sideloading license might be missing or expired. Trust relationships could be incomplete or invalid. System security settings might restrict app installation sources. These system requirements need systematic verification and configuration.
Resolution Steps
1️⃣ Policy Verification
Begin by checking current policy configurations. Verify AllowAllTrustedApps policy status. Check domain join state if applicable. Review Group Policy settings affecting app installation. Document current policy states and requirements.
2️⃣ System Configuration
Review and configure system requirements for sideloading. Verify Windows Sideloading license status. Check trusted app signing requirements. Configure necessary security settings. Document all system configuration changes.
3️⃣ Installation Validation
After configuring policies and system requirements, verify installation capability. Test app installation process. Monitor for any additional policy-related issues. Document successful configuration patterns. Verify app signing meets trust requirements.
Best Practices
👨💻 For IT Administrators
Effective sideloading management requires attention to policy and system configuration. Implement comprehensive policy monitoring. Maintain documentation of sideloading requirements. Develop clear procedures for enabling sideloading capabilities. Create systematic approaches to policy verification. Consider implementing automated compliance monitoring.
🔄 For System Management
Successful system configuration requires attention to security and licensing requirements. Develop clear processes for verifying sideloading capabilities. Maintain accurate documentation of system requirements. Implement thorough testing procedures for app installation. Create comprehensive documentation of configuration steps.
Troubleshooting Tips
When addressing sideloading issues, focus on policy and system requirements. Verify policy configurations first. Check system licensing status. Test with trusted signed apps. Monitor policy application status.
Sideloading configuration involves several critical factors. Policy settings must be correct. System licensing affects capability. App signing is crucial. Consider security implications.
Additional Notes
💡 Policy configuration essential
🔒 Licensing requirements critical
⚠️ App signing must be trusted
📱 Domain join may be required
Related Links
Configuration Guide
-
Policy Assessment
- Check current policies
- Verify domain status
- Review security settings
- Document requirements
-
System Setup
- Configure sideloading
- Verify licensing
- Enable trusted apps
- Test configuration
-
Installation Testing
- Verify app signing
- Test installation
- Monitor policies
- Document outcomes
Ensure proper policy configuration and system licensing before attempting app installation, and maintain clear documentation of sideloading requirements.