1) Open a command line window
2) Type "powershell" which will launch the powershell
3) cd to your downloads folder - "cd \Users\<username>\Downloads"
4) Run "Get-FileHash .\<downloaded SN Pro Plus 8 install exe file> -Algorithm MD5"
5) It should print out the md5 checksum on that file
What is the md5 checksum?
Note, you are only entering into the command line what is written in quotations above. You can copy and paste.
https://www.nextofwindows.com/5-ways-to-generate-and-verify-md5-sha-checksum-of-any-file-in-windows-10