If you are using Windows, google for "md5sum Windows. You should get several links to md5sum checkers for use in Windows. If you do not like working on the command line, there are several apps that will let you point and click to the file you want to check (easy-peezy). One such utility is Md5summer
. I do not use it, so I can not give a recommendation from experience, but it is a GPL project, so check out the Web site anyway.