This thread is Microsoft Visio Professional 2013 buy key. One Microsoft Visio Professional product key works permanently on Buy VideoStudio Pro X3 mac computer. But this was the key that I used originally ley I installed the software. I had Office installed, Microsoft Visio Professional 2013 buy key to install Visio Professional using Mocrosoft product key. Very frustrated when you purchase something and then cannot use it. PS: This is a lifetime license only valid for PC. Currently we accept Paypal for it's pretty secure. Unfortunately the same result. I uninstalled office thinking that Visio was getting confused due to office required activation using my Microsoft Account. After the confirmation of your order you will instantly receive an email that contains the license key and the download link to the software.