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STATUS_NOT_ALLOWED_ON_SYSTEM_FILE
The file system protects this internal metadata file from the requested action
File systems maintain internal files for allocation maps, journals, security data, indexes, and other metadata. Even an administrator with a handle cannot assume that normal data-file operations are valid against these objects.
Bypassing the restriction with raw disk access risks corrupting the entire volume. The operation should be redesigned to use a documented FSCTL or volume-management interface that preserves file-system invariants.
What to inspect
- Identify how the handle reached the system file and whether backup or forensic flags were involved.
- Map the intended goal to a documented file-system control operation.
- Do not modify internal records directly while the volume is mounted.
References
- Microsoft: File Management Control Codes
- Microsoft: chkdsk
- Microsoft Open Specifications: NTSTATUS values
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