Verify your download
Every Hurricane release is published with a SHA-256 checksum, a unique fingerprint of the exact file. Comparing it takes a few seconds and confirms your copy is genuine and was not altered or corrupted in transit. You do not need to install anything.
A quick note on the download warning. Hurricane is not code-signed, so Windows or your browser may show a caution prompt because the file is new and unrecognized, not because anything is wrong with it. Choose Keep, then Run anyway. The checksum below is how you confirm for yourself that the file is exactly the one I published.
The official checksum
Current build v8.3.1 · hurricane.zip
SHA-256: 4f631f107facbb74273ddb3680af3c17c1c49ea6bdf693142c2504a0d888f304
You can also download the checksum file (hurricane.zip.sha256).
How to check it
Option 1: Windows PowerShell (built in)
Open the folder where you saved hurricane.zip, then in PowerShell run:
Get-FileHash .\hurricane.zip
Compare the Hash it prints with the checksum above. They should match exactly (case does not matter).
Option 2: Command Prompt (built in)
certutil -hashfile hurricane.zip SHA256
Compare the line it prints with the checksum above.
Option 3: 7-Zip (if you have it)
Right-click hurricane.zip in File Explorer, choose CRC SHA → SHA-256, and compare the value shown with the checksum above.
If it matches: your download is genuine and intact. You are good to go.
If it does not match: do not run the file. Delete it, download again, and re-check. If it still does not match, email support@74mph.com and I will help.