Keep crashing on my Windows 10 TP machine.

After crashing the window, the icon of Code Writer still remains on the task bar. Clicking on the icon will start the app again (and surely, crash it again). Odd.

Hello,

For us, the Code Writer runs fine and we can use it in windowed mode without any problems.  I just tested it again here.

I'm sorry you are having trouble.  Unfortunately it just sounds like your scenario could be some sort of Windows 10 Tech Preview issue that we probably don't have control over.  I would suggest that you possibly provide feedback on the issues you see with our app and others to Microsoft with their Feedback app.  That way they can look into what is causing the crash.

You might also be able to use some of the info here to check the event log and see if anything stands out there:

http://blogs.technet.com/b/askperf/archive/2013/10/11/what-to-do-if-your-windows-8-modern-app-fails-to-start.aspx

We already have this URL (codewriter://reset-settings) that will reset the app's settings if you run it from Windows.  For the next version, we will also add (codewriter://close-all) that will close any open files.  Between those two calls, it should reset the app to it's default install state.  Although really, uninstalling and running (codewriter://reset-settings) should do the same in the current version.  I suggest these, just in case something did get corrupted during a file load.