I had to install new operating system so I copied uncomplited files from bit commet. After installing bit commet I moved uncomplite files to download file in bit commet but it occured that bit commet cant reasume downloading it - it is nothing in transfer secthion. So I downloaded the same torrent and started downloading and then closed bit commet and again moved my old copy to download section to overwrite but when i reasumed download the error occured with some question of debugging. I have no idea how to finish uncomplite download. 
After you’ve moved the incomplete files over (they don’t necessarily have to be in the same location, because you can change the torrent’s download location while it’s stopped), then do a manual hash-check. IT will take a while, but should then show the same competion % as you had before, and will pick up where it left off.
Thanks a lot it works!!! 
Hello,
I downloaded some Las Vegas movies..and while one file completed I had not enough space on my HD. It`s on 100% allready..
I tought that it would be a good plan to re-hash it.
Is there anybody who can tell me were I can find the Re-Hash mode in Bitcomet. I`m not familiar with this type of progams..
Many thanks!!!
Tommy