Download CCM Quantum
Use the download page and save the installer somewhere easy to find, such as Downloads.
Windows installation help
The current CCM Quantum installer is unsigned, so Windows may show an unknown-publisher message. Keep protection switched on, check the file and follow the steps below.

Use the download page and save the installer somewhere easy to find, such as Downloads.
Compare the filename, byte size and SHA-256 with the values on the verification page.
Double-click the file. If SmartScreen appears, read the message before continuing.
Windows will reveal the file name and the option to continue. Do not turn SmartScreen off.
Follow the installer prompts, then open CCM Quantum from the Start menu or desktop shortcut.
Use your CCM account, check product access and open TableSync.
Why Windows shows the message
That means Windows cannot show a verified publisher name. It does not mean you should disable security. Use the file details on the website to confirm you have the expected installer before you run it.

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