The original Hashcheck is from 2009 but seems to work fine in Windows 10. You’ll get an extra tab called Checksums alongside the standard tabs of Compatibility, Details, Previous versions and etc. HashCheck works in a slightly different way to a traditional checking tool because it integrates into the system’s file properties window. Here we show you 10 different tools that can calculate and compare hash values, they were tested on Windows 10 and 7. If you have something like an MD5 or an SHA based hash value from a website and want to check the integrity of the downloaded file, a way to calculate its hash value is required. All the official Windows ISO images will have an SHA-1 hash listed somewhere online which you can then compare against to see if the one you downloaded is identical to the original. A prime example is ISO images for operating systems like Linux and Windows. A couple of popular hash algorithms are MD5 and SHA-1 and you will sometimes see these values listed on website download pages. If even one byte in the file changes, the value given when the check is run again will be different. Every file has unique data contained within it, and when you apply a certain algorithm called a “cryptographic hash function” to it, a string value is returned which is only valid for that file in its current state. Or you can verify a file’s integrity by checking its hash value. One of the ways you can identify whether a file has been changed from its original state is to check its digital signature. This could either be by the site you are downloading from, corruption due to errors in the download process, an individual who has uploaded the file for you, or possibly the most dangerous, the file has been infected by malicious software. When you download a file from the internet, quite often you cannot be 100% guaranteed that the file has not been changed in some way from the original.

Checksum generate tool