I didn't see the reply here. Windows 7 and a high powered computer using Intel processor and 12 GB RAM. I made a video of what happens but basically I import wav file, highlight it, right click and choose the time stretch pitch shift, I disable time stretch and select pitch shift to usually minus 1 . THen I execute it and get the pop ups.. yellow popup upper right says "1 consolidated files to process" and a popup in the middle says "Converting Sample Rate" .. that's where it hangs until I use task manager to close the program, then install RB2016 and execute the above successfully