While installing Presenter 9 on my Windows 8 Office 2013 I get an error message "Alert, other instances of Adobe Application Manager are running, which must be closed. Please close them to continue."
I don't know why this is coming up or how to close this on Windows 8.
Please restart the machine and try the installation once again.
Some previous installer process might be running in background. Restarting the machine should solve the problem.
Thank you for this help and speedy answer Mukul.