Caching & $Bitmap problem

I have a problem…

I want to change the NTFS’s $Bitmap area.
I change the free byte(0x00) in $Bitmap to 0xFF.
but, it return to 0x00. I think, $Bitmap is caching by Cache Manager.

I opened volume and got the $Bitmap sector number, and changed the sector.
but, it returned to original…

when I can get $Bitmap’s fileobject I can change the $Bitmap’s caching
data. it work good…
but, when I can not get $Bitmap’s fileobject, I can not…

how can I solve this problem…


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