c - How access Drivers folder in minifilter driver -

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my minifilter driver start type on boot, wont access c:\windows\system32\drivers folder in instancesetup callback, tried \systemroot\system32\drivers , got status_object_path_not_found, when tried \device\harddiskvolume2\windows\system32\drivers worked.

my question can sure harddiskvolume2 path have drive current operating system installed? maybe should use harddiskvolume3 or harddiskvolume4, how can know it?


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