If Apple tools are not avaiable you can check the SHA1 checksum of the downloaded image: Please check the integrity of the downloaded package by checking the signature: Note: Although we take precautions when assembling binaries, please use the normal precautions with downloaded executables. R and package binaries for R versions older than 4.0.0 are only available from the CRAN archive so users of such versions should adjust the CRAN mirror setting ( ) accordingly. It's only showing it because it is not digitally signed.This directory contains binaries for the base distribution and of R and packages to run on macOS. If you see the following screen when launching the program on Windows 10 systems, just click 'More Info' and then 'Run Anyway'. The source code is also on GitHub (visit the Github page for the project via the menu at the top). See the hashes below and check on your own system once downloaded.

So you can only use the 64-bit version on 64-bit Windows operating systems. Note: The the 64-bit version is architecture dependant. It includes change log, readme, user manual, and both executables ready to use. This is the 32 and 64 bit version of QuickHash-GUI for Windows. A newer version of QuickHash is available

For apple instal QuickHash 3.3.2