Cannot open 2.0 after installation

I downloaded 2.0 win. I now cannot open any Audacity program. Should I have uninstalled the previous version? The error message reads that the configuration is incorrect. HELP!

For future reference, please quote the full and exact error message and which version of Windows you are using.
My guess is that you are using Windows XP and the error message said:

“C:Program FilesAudacityaudacity.exe
This application has failed to start because the application configuration is incorrect.
Reinstalling the application may fix this problem”

If that’s it, see here: