FreeFileSync Forum

I use freeFilesync to sync local files pn my drive with ones on several flash drives in one task. I have to delete all the files in flashes before the transactions. It writes ERROR_DISK_FULL [CopyFileEx]
. So I have 2 questions:1.how to calculate free space need for sync 2. Does Freefilesync use ...

It is simply a question. I have one important file. Its size is 30 GB. It transfers to flash drive very slow. Average speed is 400 kb/s. When copying through Windows 10 is approximately 5Mb/s. Everything is OK with all other files.

Regards,
Alex