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STATUS_APPHELP_BLOCK
Compatibility policy intentionally prevented launch
STATUS_APPHELP_BLOCK identifies a specific Windows status in the application packaging and activation path. The Application Compatibility framework selected a blocking mitigation or compatibility decision for this executable. This is a policy result, not proof that the image is corrupt.
Identify the matching AppCompat database entry, executable identity, version, publisher, and compatibility event. Removing databases blindly can disable protections or application-specific fixes.
What to preserve before changing the system
- The exact API, caller, target object, original NTSTATUS value, and any nested error or activity ID.
- the relevant process token, package/job/enclave identity, lifecycle state, and policy or mitigation settings.
- operational event logs and a timeline showing the first transition into the failing state.
References
- Microsoft: package and deploy Windows apps
- Microsoft: troubleshoot app package deployment
- Microsoft: package identity overview
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