The offline installer still checks for pending Windows Updates. Solution: Set Windows Update to “Never check for updates” temporarily, reboot, then install .NET 4.5 offline.
History and purpose The .NET Framework is a software development platform that provides a managed execution environment, a large class library, and language interoperability across several programming languages. Released in 2012, .NET Framework 4.5 built on the 4.0 baseline and introduced enhancements across several areas: async programming support via the async and await keywords, improvements to the Base Class Library (BCL), better garbage collection, profiling and debugging enhancements, and updates to networking, WebSocket support, and ASP.NET performance. For end users, the framework is often required by applications built using .NET; without the appropriate version installed, such applications may fail to run or lose functionality. The offline installer still checks for pending Windows