No, but .NET 4.5 is an in-place upgrade that replaces 4.0. You do not need 4.0 installed first.
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
Yes. The file dotNetFx45_Full_x86_x64.exe works on both 32-bit (x86) and 64-bit (x64) systems. You may need the specific version
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 . Need help