Do not download from third-party "DLL download" sites or softonic-style portals. They often bundle malware or use outdated versions that break on Windows 7.
Open services.msc via the Run dialog (Win + R), locate the Windows Update service, ensure its startup type is set to Automatic or Manual , and start the service before running the installer again. Final Thoughts net framework 4.5 2 offline installer for windows 7
Clear the Windows Update cache by stopping the service ( net stop wuauserv in cmd) and deleting files inside C:\Windows\SoftwareDistribution\ . Verifying the Installation Do not download from third-party "DLL download" sites