cscript slmgr.vbs /dli Or to input a specific key for validation:
We’ve all been there. You’re reinstalling Windows, reactivating Office, or trying to troubleshoot an error code, and you stare at your product key with one burning question: “Is this key even valid?” microsoft product key checker
So how do legitimate users check their keys? You have three real options. This tells you what edition the key is for, not if it’s blocked by Microsoft. cscript slmgr