Hi guys!
Recently (January 9th) there was a Windows update with some security fixes that got rolled out, and this included a .NET Framework update. We’ve gotten a few reports that machines running Windows 7 are not able to launch Axure RP after installing this update. If you happen to be using a Windows 7 machine and find that Axure RP isn’t launching after installing that update, then uninstalling that most recent .NET update should do the trick and allow you to launch again.
Hopefully that helps! As always feel free to email support@axure.com with any questions.