.NET Framework 4.0 reached end-of-life in 2016. Running it on Windows 7 (also EOL since Jan 2023) exposes systems to unpatched vulnerabilities (CVE-2017-8759, CVE-2020-1046).
Once finished, . This is crucial for the registry keys to initialize. Common Issues and the "Fix" Download Net Framework 4.0.3019 For Windows 7 64 11 Fix
If you absolutely need the exact 4.0.3019 build, check: CVE-2020-1046). Once finished