I got a client who has just bought this and he says that he cant install on 32 bit machine and it's 64 bit only. Is this true as he has been told this from Intel support.
Yes, it is true the 2017 products require 64-bit support for installation (see also Support Removed section in the Compiler RNs). You can still build for a 32-bit target. Complete System Requirements are also in the Release notes, https://software.intel.com/en-us/articles/intel-visual-fortran-compiler-170-for-windows-release-note...