A checksum is a string of numbers and letters used to verify that a copy of a file is identical to the original. For example, a binary file (especially a software program that has been downloaded) can be checked for errors before it is installed.
If you know the checksum of an original file, you can use a checksum utility to verify that your copy is identical.
Windows 10 has a utility called “certutil” that can be used to produce a checksum for any file. Open Windows Powershell as admin and run the following command:
certutil -hashfile your_file_to_examin.bin SHA256
f you wish to produce a checksum using a different algorithm, simply replace “SHA256” with one of the available algorithms: “MD2 MD4 MD5 SHA1 SHA256 SHA384 SHA512”. For example, to produce an “MD5” checksum, run the following command:
certutil -hashfile your_file_to_examin.bin MD5