The wizard will check your system, extract the files, and install the updated runtime binaries. The process normally takes less than a minute. When the installation finishes, you will be prompted to restart your computer . Do so to finalise the update.
The installer modifies system-level directories ( C:\Windows\Microsoft.NET\Framework64 ) and requires elevated permissions. Step-by-Step Installation Guide
Microsoft no longer hosts this on the main download center, but the authentic packages (SHA-1 verified) are available via the Microsoft Update Catalog archive:
The standard base version of Microsoft .NET Framework 4 is . However, the version string 4.0.3019 typically refers to the Update 4.0.1 (KB2468871) .
Note: Make sure to select the versions of these updates. Step 2: Update the Root Certificates
To avoid conflicts, close any open programs, especially Windows Explorer, development tools (Visual Studio, if installed), and any software that uses .NET components.
: For repairs or alternative installation methods, using the command line might be helpful:
Use code with caution. Security Best Practices
