: If you are looking for an activator, the tech community generally considers Microsoft Activation Scripts (MAS) on GitHub to be much safer and more transparent than KMSPico, as the code is open-source and doesn't require disabling antivirus. To help you find the best path forward, tell me: Are you primarily worried about security/viruses ? Do you need specific features that only Office 2019 has?
: Activations are often temporary (usually 180 days) and require the tool to run in the background to renew the "lease" automatically. Official Activation Alternatives