Every once and a while I want to validate the hash of a downloaded file. Most of the time these are MD5 hashes, but I’ve seen SHA as well.
Windows actually has a couple built in ways of generating the hash of a file. You can use certutil or, in powershell you can use get-filehash.
With Certutil
To verify a checksum with certutil use the following command: certutil -hashfile {FILENAME} {ALGORITHM} replace the FILENAME and ALGORITHM with your choices.
With get-filehash
This is my preferred method. No reason, maybe I like the order of arguments better?
Use get-filehash -algorithm {ALGORITHM} {FILENAME}.
That’s it!