A checksum is a short fingerprint of a file. If even one byte of the file changes — because a download was interrupted, or because someone tampered with it — the fingerprint changes completely. Checking it before you run an installer takes less than a minute.
Where to find the published checksum
Sign in to the Client Portal and open Downloads or the App Store. Every version lists its SHA-256 checksum, a 64-character value calculated by our servers when the version was published.
Check the file in PowerShell
- Open the folder that contains the installer you downloaded.
- Hold Shift, right-click an empty area of the folder, and choose “Open PowerShell window here” (or open PowerShell and change to that folder).
- Run the command below, replacing the file name with your installer’s name.
- Compare the Hash value it prints with the checksum shown in the portal. Upper or lower case does not matter.
Get-FileHash -Algorithm SHA256 .\<installer>.exeIf you prefer the Command Prompt, this built-in command gives the same value:
certutil -hashfile <installer>.exe SHA256What the result means
- The values match: the file is exactly the one we published. You can install it.
- The values are different: do not run the file. Delete it, request a new download link in the portal, and check again.
- They still differ after a fresh download: contact support with the version number and both values.
Download links are signed for your session and expire after 5 minutes. Installers are only ever available from the Client Portal — never run an installer that someone sent you in a chat or by email.