for me: confirm memory leak - unchecked "disable win cach of disk reads" try lastest x64 build no this mem leak with or w/o win cach disk read latest x86 build have some issue when i'll copy huge files UL speed drop down from 10MB/s to 100KB/s not happen in x64 build and "disable win cach of disk writes" when unchecked no disk overhead, when checked and DL some files after sometime disk overhead, not happen in x64 build can't try with earlier builds can't DL this one UPD!!! try 3.0.1 - present mem leak, but no UL speed drop down when hdd using in another task and my fault: mem leak present in latest x64 also