Settings - Transfers - Local Files

Default Download Location
This is the location on the local hard-drive where downloaded files will initially be saved. The location of downloaded files for an individual transfer can be changed in the 'Options' tab in the transfer properties.

Move On Completion
If this option is set, the local downloaded files will be moved when a transfer completes and starts seeding. This can be overridden per-transfer by changing a setting in the 'Options' tab in the transfer properties.

Incomplete Piece Storage
This is where the software will store small fragments of downloaded pieces before they are complete. The data is stored separately because only complete pieces can be hash-checked for integrity, therefore it would be dangerous to save this data into the main downloaded file. This location should have at least 40-50 MB of free space available otherwise data may be lost between sessions.

Location Shortcuts
The user may choose to use the most recently selected folders for a shortcut list, or a custom list of folders. When using the customized option, the 'Clear' button will be replaced by the 'Customize' button which will open the Customize Location Shortcuts window.

Peer Read Caching
Read caching reduces hard-drive activity when sending data to other peers. The default setting should work well for all users. Some of the more aggressive settings will consume more RAM in exchange for even lower disk activity, however the trade-off is often not worth it beyond the Predictive (default) setting.

File Allocation
When a new transfer starts this setting will determine how the files are initially saved to disk. "Full Pre-Write" will write out the entire file with zeros when it is initialized. "Fast Allocate" uses a special method of write-seek striping that will fully allocate the file in NTFS file systems quicker than a full pre-write. "Sparse" will use a special file mode (supported on most file systems) that creates the file at it's full size but only uses disk space as downloaded pieces are actually saved. Sparse mode may increase fragmentation, but the files will initialize much faster and disk space will not be consumed until the files are actually downloaded.

Directly move file/folder if possible when changing location
If this option is active, all moves within the same hard-disk partition will happen by re-linking the file to the new location instead of moving it by copying / deleting.

Error on missing downloaded files
If this option is active, a transfer that has previously created it's files will stop with an error if it can not find those files the next time it is started. This prevents re-downloading data that may simply have been moved to a different location between sessions. If this option is not active, the transfer will simply re-create the files from scratch and start downloading from the beginning.

Permissive last-write time checks
Use this option only if you get transfers that constantly start checking themselves in the middle of normal downloading. This feature is not recommended unless absolutely necessary.

---