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File System Fundamentals

Last Updated: 7/30/2016

Note For optimal reliability and performance, we recommend using file system minifilter drivers instead of legacy file system filter drivers. Also, legacy file system filter drivers can’t attach to direct access (DAX) volumes. For more about file system minifilter drivers, see Advantages of the Filter Manager Model. To port your legacy driver to a minifilter driver, see Guidelines for Porting Legacy Filter Drivers.

This section introduces fundamental file system driver concepts that are important to developers of file system filter drivers. The following topics are discussed:

What Determines When a Driver Is Loaded

What Happens to File Systems During System Boot

Storage Volumes, Storage Device Stacks, and File System Stacks

Mounting a Volume

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