Windows user comes across a few issues while installing Java or some other similar applications. One of the issues is the error 1721 Windows installer.
This error generally arises when you try to install, uninstall a program or the computer is not capable to read various files or the Windows installer package has some trouble. Then this error message appears.
Error 1721. There is a problem with this Windows Installer package. A program required for this install to complete could not be run. Contact your support personnel or package vendor.
You might be among those users encountering this problem as you are here reading this article and searching for a solution.