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size on disk capacity now larger after copying

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Nov 9, 2010
Hi everyone, i had a 300GB file i was getting over torrent, i copied the file into windows from my nas so that i can fmart the nas hdd to another file system, now the file when it was on the NAS had a 300GB file size and a 50GB size on disk (50GB was downloaded so far), after copying it to windows i now realize that the size on disk has also changed to 300GB, thus taking excess space, is there any way to reverse this ?


Uber Folding Senior
Jul 17, 2003
My experience with torrent was that it always reserved the full disk space that it needed for the full file. I'm actually surprised that you saw a number that was less than the full file size when completed.