Disclaimer: Using software activators to bypass activation is illegal and poses significant security risks to your system. Removal of KMS-R@1n from Windows 10

If the tool is no longer desired, it can usually be removed by:

It creates a persistent background process or scheduled task (often named KMS-R@1n.exe) that manipulates KMS services every 180 days to maintain activation status.

Running a scan with reputed malware removal tools, such as Malwarebytes, which can detect KMS-R@1n components.