I bought Vegas Movie Studio 16 about a year ago. I upgraded it to the Windows 10 Version. I do not know if this has any correlation but 2 of my windows 10 computers crashed within a week or two of downloading Movie Studio 16. I am trying it again finally on a PC that I will only use for Vegas 16. (can't risk another crash) Within an hour of using the program Vegas 16 just locked up and the only way out was cntrl/alt/del ....It did come back to life when I restarted the PC.... I had the old Vegas 9 Version by Sony from way back and I was much more impressed with it.