Not usually. You may need the specific version. For 4.5.2, download that standalone installer instead. Final Tip After installing, run Windows Update to install any security patches or hotfixes for .NET Framework 4.5 on your 32-bit Windows 7 system. Need help? Leave a comment below (if on a blog) or consult the official Microsoft .NET Framework support documentation.
No, but .NET 4.5 is an in-place upgrade that replaces 4.0. You do not need 4.0 installed first. Not usually
If you are running a 32-bit version of Windows 7 and need to install or repair Microsoft .NET Framework 4.5 without an active internet connection, you need the offline (standalone) installer . Not usually