Here's a list of common installation options for Cylance. Note that they can also be used with the Cylance Unified installation MSI. Replace <PIDKEY> with the tenant's installation key.

New tenant installation (so Cylance will be running in "learning mode" for a few weeks), where clients are using Windows Defender as the primary AV:

msiexec.exe /i "CylanceProtect_x64.msi" ALLUSERS=1 /qn /norestart /log output.log PIDKEY=<PIDKEY> LAUNCHAPP=1 REGWSC=0

Existing tenant (which is past the "learning period") or a new tenant where clients are using another (supported) anti-virus as the primary AV:

msiexec.exe /i "CylanceProtect_x64.msi" ALLUSE  ...