Hi, I downloaded the CFD installer on the 20/09/2017. Version of installer was 15.0.5414.0 and the size was 13,630,872 bytes. When I downloaded the CFD installer today the version is identical but the size is 13,861,664 bytes? It is strange to have a different file size for the same version and after the issues with ccleaner I am wary about installer that expand in size. Their hashes are also different (which you would expect for a different file size) Edit: Looking at the signing certificate the new version appears to have been signed last night.