Windows Installer 5.0 [extra Quality] Download For Windows 10 64-bit ◉

As shown, Windows 10 already contains a version of Windows Installer that is as recent—or more recent—than anything labeled “Windows Installer 5.0.”

Once that completes, run the system file checker: sfc /scannow Windows Installer 5.0 Download For Windows 10 64-bit

The only remotely similar official download is the for older operating systems (Windows XP, Vista, 7). Those packages (v3.1, v4.5) were superseded years ago and are not for Windows 10. As shown, Windows 10 already contains a version