Switch to Linux (Ubuntu, Linux Mint) and OnlyOffice. For 90% of home users, this stack is free, secure, and legally unburdened.

If the cost of a license is the barrier, there are legitimate ways to get Windows and Office without resorting to tools like KMSPico:

A computer activated via KMSPico is technically running a modified version of Windows. If you encounter critical errors or need technical support from Microsoft, you will be unable to get assistance. Furthermore, some security updates may fail to install if the system detects tampering with the licensing components.