Hello Team.
Is there any analysis or property that we can use to see if the Windows Machines are activated or not and if we can activate them through bigfix console?
You can use action script to use slmgr.vbs to output to a file and read that back with an Analysis. You can also leverage WMI but keep in mind the cost to how often you will check.
You can then leverage a similar but different fixlet to run slmgr.vbs with /ipk and then /ato to activate.