Which version of the software are you using?
What about Premiere Elements doesn't work? What happens when you start the program?
What operating system are you running it on? Have you ensured you have all of the latest updates for that operating system?
Have you ensured you have the latest version of Quicktime, per the program's requirements?
Did the program ever work on your machine? If so, when did it stop working and what changes had you made to your computer?
We definitely need more details in order to help you.
I use Adobe Premiere Elements 14
When I click on the program iconor on a file nothing apen. I'm using Windows 7 professional.
The program work for the past 2 months and yesterday, it stops working.
Try starting the program while holding down the Ctrl+Alt+Shift keys on the left side of your keyboard.
You should get a warning that the program will make a change to your system. Okay that and the program should start working again.