How to troubleshoot Windows Installer errors - Microsoft Support
no standalone download for Windows Installer 5.0 on Windows 10 64-bit . This version is already built into the operating system
Open Command Prompt as Administrator and run: Windows Installer 5.0 Download For Windows 10 64-bit
However, there is a major misconception regarding how this software is distributed. You cannot download Windows Installer 5.0 as a standalone package for Windows 10.
It allows for improved securing of resources, including new accounts, files, folders, and registry keys via the MsiLockPermissionsEx table. How to troubleshoot Windows Installer errors - Microsoft
Precise management of the 64-bit registry hives. Troubleshooting Common Windows Installer 5.0 Issues
Windows Installer 5.0 is a significant update to the Windows Installer technology, which was first introduced in Windows 2000. This new version provides a robust and reliable way to install and manage software on Windows systems. Windows Installer 5.0 offers several improvements over its predecessors, including: It allows for improved securing of resources, including
Since Windows Installer 5.0 is integrated into the OS, the best way to get the latest version and all its hotfixes is through Windows Update. Microsoft regularly releases updates that can include improvements and fixes for the Windows Installer.
The reason is simple: Microsoft never released a redistributable package for this version. This critical piece of software is built directly into the operating system and is an integral part of Windows 10.
Windows Installer. V 5.0.19041.1
Troubleshooting Windows Installer Issues on Windows 10 64-bit