You guys have always been helpful in your step-by-step directions. I'm a bit slow, you know.

Hello, I just bought Finale 25, but it does not work, the software is well installed, but it is does not open 
when I try to open it, a window with errors appears, 
what can I do to make it work ? 
my OS is YOSEMITE 10.10.5 
I updated my ARIA PLAYER 
Thanks 
Christophe

I purchased the upgrade for Finale V25.3. I'm upgrading from Finale 2014.5 I'm getting this message:

The Installation Failed.

The installer encountered an error that caused the installation to fail. Contact the software manufacturer for assistance

Mac OS 10.12.4

Mario,

Step 1 to try: if you were using the Chrome browser to download/install the program, try a different browser.