PTC Mathcad Prime Trial version for 30 days

Hello. I am trying install PTC Mathcad Prime Tryal version for 30 days but i am not being successful. After all procedure in PTC Web Installation Assistant, in the end, after download files, i have an Error: "Some applications failed or cancelled. Click information icon of failed application for details". I click on information icon and i have this message: "Installation failed. You can Restart the failed application installs or click Exit to close the installer". Can you help me install this trial version?