I recently bought the Vega bundle and I had a problem while installing it. http://prntscr.com/nrschq As shown on the screenshot the download doesn't start, I press the continue button but it doesn't do anything. I tried turning off my anti virus, rebooting my pc and trying to install multiple times.
I advice you to download that installer again and make another try, because my installation box differs from yours where you are missing the text and the checkboxes.
this happens after u select the programs u want to install, the boxes disappear and the download always pause. if u resume it stops again
I never saw that. When this happens the reason is that the Windows or other options not are allowed other programs to download programs. Those settings maybe are in Windows Defender or own security programs.
Just use another browser and download off-line installer. Choose the most recent version (build 416) mentioned under "VEGAS Pro 15.0 direct links including bundled apps & previous updates" header on the Download FAQ that vkmast mentioned.