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Preallocate files


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Stop, sparse files have nothing to do with "Pre-allocate all files". Preallocation means reserving space - it worked correctly in 1.7 but in 1.8 it doesn't allocate/reserve any amount of data.

I suggest: CreateFile, SetFilePointer with filesize from FILE_BEGIN, then SetEndOfFile

Instead of as i said SetFileValidData.

Or just remove this option cuz it doesn't do what it should - no reserving space.

What the difference in using sparse files and not when no preallocation is done?

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