I just haven't been able to get past this part and idk how necessary it is and it's saying its not locating the file essentially? "Change to the Downloads directory with the command: cd Downloads.
binary cmd cd
Calculate the hash of the Monero binary with the command: certUtil -hashfile monero-gui-win-x64-v0.16.0.2.zip SHA256 (if you downloaded a command-line only version, replace monero-gui-win-x64-v0.16.0.2.zip accordingly).
binary cmd certutil
Compare the hash from the terminal with the one in the hash file. They should be the same (spaces can be ignored).
binary compare hashes
If your hash DOES match then you are finished with verification! You can be sure the Monero files you have are authentic. You may extract and install/use the files normally.
If your hash DOES NOT match DO NOT CONTINUE. Instead delete the Monero binary from the Downloads directory and go back to section 4.1."
(Sorry I couldn't copy and paste pictures from this tutorial I'm following:
https://www.getmonero.org/resources/user-guides/verification-windows-beginner.html#21-download-signing-key