I believe it's a fault, since that's a crack.
Answer:
<em>It might automatically set a restore point for the computer system</em>
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Answer:
To see who reads the file, open “Windows Event Viewer”, and navigate to “Windows Logs” → “Security”. There is a “Filter Current Log” option in the right pane to find the relevant events. If anyone opens the file, event ID 4656 and 4663 will be logged.