Did you by chance read this?
I can not download (my antivirus identify it as potentially dangerous software, virus, threats, trojan, etc..) I can't install (in place of windows-installer appears blank page).
We assure you that MediaGet does not contain any virus, "worms," "Trojan horses" or any other dangers, if you download it from our official site. Some antivirus such as NOD 32, Kaspersky, DrWeb, can identify MediaGet as a "dangerous or potentially unwanted software". All this because any download manager can be used to download virus from the internet. In order to provide maximum safety and minimize the risk of infection of computers of our users, we have worked only with verified (certified) web-sites, apart our effort, we recommend you to download files from trusted web-sites. To get rid of false alert of antivirus in to our software, you need to add MediaGet in the exclusion list of your antivirus. If you were not able to do it alone and needs our help, please contact us via the support form.
It's on the faq. http://www.mediaget.com/faq
You might also ask in the support forum.