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STATUS_SET_CONTEXT_DENIED
Process policy blocked thread-context modification
STATUS_SET_CONTEXT_DENIED identifies a specific Windows status in the process security and execution policy path. A caller attempted to alter a thread context in a process whose mitigation or trust boundary forbids that operation. This often affects debuggers, injectors, profilers, and compatibility shims.
Identify caller and target process, requested context flags, protection level and mitigation policy. Do not work around the denial by weakening unrelated ACLs.
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: process mitigation policies
- Microsoft: App Control troubleshooting
- Microsoft Open Specifications: NTSTATUS values
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