The Microsoft Windows Installer program was bundled with the Windows Operating system starting with Windows 200 and XP. The goal of the deployment of the Windows installer program was to allow developers to build programs for deployment on the Windows Operating System at a lower cost and more efficiently. You may encounter the installer error 1722 when loading a new program on your computer. The install of the program may have encountered a fatal error or have ended early in order for you to get the error. When you see the error, the basic interpretation of the installer error 1722 is that Windows has encountered a significant problem during the installation process and has terminated the operation. Many times the error results from having a damaged or outdated MSI program on your computer but can also be due to a problem with the third party software you are attempting to load on the computer.
Why Do You Get the Windows Installer Error 1722?
The first thing to check if you are getting the installer error 1722 is if the installation file is corrupted or not. You can do this by downloading the program to your computer again and reattempting the installation 
process. Many times, a large executable file will get corrupted when downloading to your computer, necessitating a new download. Before you try to reinstall the program, try restarting your computer before hand just to make sure all of the computer cache has been cleared.
If you still do not have any success loading the program, attempt installing on a different computer in your home. This will help you better determine if you are having a conflict on your computer or if the problem is with the installation file itself. If it works on another computer in the home, then you will need to determine what is conflicting with the program install on your primary PC. If it does not, then you may have an issue with the software being compatible with your specific version of Windows resulting in the error 1722.
How to Fix Error 1722?
If installation works on an alternative computer and not your own, you will want to update your Windows operating system to ensure you have the most updated Windows script hosting installed. If this subcomponent of Windows is outdated, then it could be the source of the problem. The source, alternatively could be an outdated MSI installer on your computer. If you want to fix the potential MSI issue, you can delete the .msi file commonly found in the “windows\installer\83780.msi” location on your computer.
If you still do not have any success clearing the windows installer error 1722, you will want to consider running a full antivirus scan of your computer as a next step to check for larger issues. Still no luck, it may be time to try Windows System restore, or running a registry cleaning software program to try and get a known good configuration on your computer. You will want to make sure that you have made backups of any new data created since your last restore point of taking the first of these two actions.
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