When downloading FSX Deluxe Edition and reaching the point of completion, The Error 1603 and 1722 have shown on screen. Can anyone please tell me how to correct these errors?
Try these.
https://support.microsoft.com/en-us/help/834484/you-receive-an-error-1603-a-fatal-error-occurred-during-installation
https://answers.microsoft.com/en-us/windows/forum/windows_xp-windows_programs/im-getting-an-error-1722-windows-installer-package/ec60ba09-fc3c-49b4-b3bd-c315c2c7d17a
Good luck!