Download Dotnetfx45-full-x86-x64.exe Offline Installer //free\\ Jun 2026

You can check which versions are already installed by looking at the Registry Editor under HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\NET Framework Setup\NDP\v4\Full .

| Update | KB Number | Purpose | |--------|-----------|---------| | .NET 4.5.1 | KB2858725 | Feature update | | .NET 4.5.2 | KB2901982 | Security & reliability | | Latest cumulative | KB4603005 (for 4.5.2) | Rollup | download dotnetfx45-full-x86-x64.exe offline installer