Download Windows Installer 4.5 redistributable. The following file is available for download from the Microsoft Download Center: [Asset 4009805]Download Windows Installer 4.5 now. Note Check the following table to find which file to choose for your operating system：

If the installer is not version 4.5, download and install Windows Installer 4.5. Try to install or to uninstall again. Method 4: Reregister the installer engineImportant This method applies to Windows XP and to Windows Server 2000 only.

Summary. This article lists the hotfixes that are currently available for users who use Windows Installer 4.5 and Windows Installer 5.0. Windows Installer 4.5 is integrated in Windows Vista Service Pack 2 (SP2) and Windows Server 2008 SP2. The redistributable package is also available for the following operating systems:

To work around this problem, you may be able to reduce Native Image Generation times somewhat by forcing NGen.exe to generate new Native Images without regard for what was previously generated. To improve regeneration times, immediately before you install the .NET Framework 4 update, open an elevated command prompt and run the following commands.

Hotfix rollup 3156984 (offline installer) for the .NET Framework 4.5, 4.5.1, and 4.5.2 in Windows - Microsoft Support.

This article describes the Cumulative Update for 3.5, 4.8 and 4.8.1 for Windows 10 Version 22H2. Security Improvements. This security update addresses a vulnerability where restricted mode is triggered for the parsing of XPS files, preventing gadget chains which could allow remote code execution on an affected system.

This hotfix enables Transport Layer Security (TLS) 1.1/1.2 for SQL Server connectivity in System.Data.dll. Describes hotfix rollup 3099845 for the .NET Framework 4.5.2, 4.5.1, and 4.5 in Windows 7 SP1, Windows Server 2008 SP2, Windows Server 2008 R2 SP1, Windows Server 2008 SP2, and Windows Vista SP2.

April 9, 2024-KB5036620 Cumulative Update for .NET Framework 3.5 and 4.8.1 for Windows 11, version 22H2 and Windows 11, version 23H2 - Microsoft Support.

The April 9, 2024 update for Windows 11, version 21H2 includes security and cumulative reliability improvements in .NET Framework 3.5 and 4.8. We recommend that you apply this update as part of your regular maintenance routines.

MS15-101: Description of the security update for the .NET Framework 4.5, 4.5.1, and 4.5.2 on Windows 8, Windows RT, and Windows Server 2012: September 8, 2015. .NET Framework 4.5. View products that this article applies to.