If you need temporary free access, rely on the 120-day grace period. When that expires, you must purchase legitimate RDS CALs from a Microsoft reseller. Your business continuity is worth more than a registry hack.
: Tools like LyssaRDSGen on GitHub exist to generate trial or lab-use keys, but they are unofficial and not supported by Microsoft. rds cal license registry key free
Microsoft provides a to allow you to deploy and test your RDS environment without purchasing CALs immediately. During these 120 days, the registry allows unlimited connections. If you need temporary free access, rely on