These programs all work differently, but your best bet is to make sure the programs aren't just closed, but also no longer running in the background. On a PC, you can check using Task Manager. Simply press Ctrl + Alt + Delete to access it. On a Mac, open Activity Monitor. You'll find it in the Utilities folder, under Applications.
Still having trouble? Uninstall the programs causing issues. On a PC, go to Control Panel > Programs > Uninstall, and select/remove the program from the list. On a Mac, locate the program in your Applications folder and drag it to the trash.