We have AGU Third Edition (English grammar today, English vocabulary, Essential grammar in use and Advanced grammar). It's impossible to use with Windows 10. Do you have a solution to this problem? Can you help me to install the purchased programs?
Since there is no compatibility info or support for Windows 10, I recommend checking the official website. There is an update to increase its compatibility in Windows 7, but I believe you can use that to run it in Windows 10 as well.
Right-click the setup package and go to Properties > Compatibility. Set it to Windows 7 and start the installation. Finish it and close the remaining windows, but don't start it yet. Visit the page below, download the update and apply it, then right-click the executable and set the compatibility to Windows 7 as you previously did. It should work this way.