Thank you for your reply, Michael.
I have already run EA installer with Administrator privilege(run as).
The link your provided is about EA 7.1 beta. Because I am not a registerd user, I only can download and try EA7.0.
Below is Error info from Event Viewer:
Product: Enterprise Architect 7.0 - 30 Day Trial -- Error 1722. There is a problem with this Windows Installer package. A program run as part of the setup did not finish as expected. Contact your support personnel or package vendor. Action Register EA, location: C:\Program Files (x86)\Sparx Systems\EA Trial\EA.exe, command: /register And I find that even I got installation fail message, my EA is been installed in fact. But it will crash when I run it.
Below is the error from Event Viewer:
Faulting application EA.exe, version 7.0.0.818, time stamp 0x4725274b, faulting module EA.exe, version 7.0.0.818, time stamp 0x4725274b, exception code 0x40000015, fault offset 0x0092c728, process id 0x94c, application start time 0x01c883135f0083de.