[muzzab56]

I have previously requested assistance through email with this problem in October of last year when trying to update from 3.0.2 to 3.0.3. I then gave up on 3.0.3 update and have just tried to update with version 3.0.4 thinking the new update might work for me but the problem still persists. I am unable to install the version 3.0.3 or 3.0.4 due to a failure on the initial attempt as it did not recognize the .msi file. I have disabled my virus scanner and malware scanner but it still fails. I currently have 3.0.2 installed.

I have attached screen shots of my problem.

I have Windows 10 Pro which I believe your website says is able to run this program. Windows 10 downloads to the "Downloads" folder by default but your program looks in the temp folder which you can see in the screenshot. I browsed and pointed it to the Downloads folder but the message is saying it is "not a valid installation package".
I am still using my Toshiba Qosmio which is where all the previous version of Notation Composer have been installed. The only change has been an upgrade from Windows 7 Pro to Windows 10 Pro.
Windows uninstaller is unable to remove version 3.0.2.
Getting ready to give up on this.

Thank you for your assistance.

Murray