How to install programs from a disc - Microsoft Support
Alternatively, if installation doesn't start automatically, browse the disc to find the program setup file, usually called Setup.exe or Install.exe. Open the file to start installation.
Fix problems that block programs from being installed or removed
The Program Install and Uninstall troubleshooter helps you automatically repair issues when you're blocked from installing or removing programs. It also fixes corrupted registry keys.
How to troubleshoot Windows Installer errors - Microsoft Support
Describes how to troubleshoot problems that occur when you install, uninstall, or upgrade a program on a Windows-based computer by using Windows Installer.
Windows Installer 4.5 is available - Microsoft Support
Software manufacturers can create the setup of their products to use Windows Installer to help make software installation, maintenance, and uninstallation straightforward and easy.
Uninstall or remove apps and programs in Windows - Microsoft Support
There are different ways to remove apps and programs, so if you can't find the one you're looking for, you can try another location. Note that some apps and programs are built into Windows and can't be uninstalled. You can try to repair a program first, if it's just not running correctly.
List of security program cleanup and uninstall tools
Provides links to the uninstall tools and directions for many security programs.
How to install programs from online sources on Windows
How to install programs on Windows from online sources, such as from the internet or the Microsoft Store app.
Windows Installer 3.1 v2 (3.1.4000.2435) is available
Software manufacturers can create their product setup to use the Windows Installer to make software installation, maintenance, and uninstallation straightforward and easy.
Microsoft Easy Fix solutions have been discontinued
Describes Microsoft easy fix solutions and how to use them. "Microsoft easy fix" was formerly known as "Microsoft Fix it."
Use the System File Checker tool to repair missing or corrupted system ...
When critical Windows system files are missing or corrupted, your operating system may begin to malfunction. Common symptoms include Windows features not working properly, system errors, or Windows becoming unresponsive or freezing.