You can confirm that the frameworks are successfully active on your system.
Industrial computers, air-gapped systems, or servers with restricted internet access cannot use the default Microsoft Web Installer. net framework 2.0 and 3.0 offline installer
On modern systems, you don't even need a separate download. You can enable them via the Windows Features menu by checking the box for ".NET Framework 3.5 (includes .NET 2.0 and 3.0)". Historical Significance: What Changed? You can confirm that the frameworks are successfully