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The Storage tab allows you to configure where and how WinSCP stores its data, including configuration.
Check Windows Registry to store configuration to Windows registry.
Check INI file to store configuration to an INI file.
When you change a configuration storage, the configuration is automatically transfered for you (with exception of some caches).
In the section Temporary Directory you can configure where should WinSCP store temporary files.
Check Use temporary directory of system to make WinSCP store the temporary files in system temporary folder (usually defined by
TEMP environment variables).
Check Use this directory to make WinSCP store the temporary files to local folder of your choice.
When storing temporary copies of remote files (such as when editing remote files), WinSCP can reflect the location of the remote files into path to local temporary copy. You can choose to Append session name to temporary path and/or to Append remote path to temporary path.
Checkbox Cleanup obsolete temporary directories on startup enables cleanup of obsolete temporary directories on startup. Use checkbox Ask before cleanup to enable/disable confirmation before the cleanup.
In Random seed file box you can specify local path where should WinSCP store randomly generated data it uses on startup to seed its encryption random number generator.