Every attempt to launch the trial version of the "wolfram mathematica" is failed due to a crash, and nothing helps. As windows says, programs just stops working,
You can try a clean start http://support.wolfram.com/kb/12464
If you haven't gotten through to support yet and this is still an issue, you can try a direct email: support@wolfram.com.
I can't. It crashes too. I tried printers driver reboot, fonts re-istallation, windows save mode, programm re-istallation, even Nvidia drivers change. Nothing helps.
Did you check the MD5 check sum of the download before installing? Do you run Windows XP, Windows 2000 or some older version? I mean, Mathematica is used to work on a daily base for literally millions of users ...
Yes, no probles there. Win 7 x 64.
Can you start the command line version (math.exe) - in a DOS box, if it is under windows:
or from the shell under Linux, iOS?
Contact Wolfram Support. They should be able to help. They will want to know details of your computer, etc.
Email doesn't working as i see.
Since you have a web browser, you can contact support over the web:
http://www.wolfram.com/support/contact/email/
They can help with installation issues (which this appears to be).