It’s pretty simple to use.
Simple drag and drop an .ISO file onto this EXE, or double click on it and navigate to the file, then sit back and relax whilst it crunches the numbers. Once it generates a hash, it’ll compare it with a list of known and trustworthy hashes of ISOs to tell you exactly which build version and architecture it is known to be. This list will be updated live over the web so you won’t have to redownload the app.
We recommend you always try to get the ISOs from the official site, but if you prefer BTs for some reason it’s fine too. Just don’t forget to verify its validation before using it.
Download the Windows 7 ISO Verifier (EXE, 253KB) [via istartedsomething]