According to multiple reports from security firms (Kaspersky, Malwarebytes, and Microsoft Security Intelligence), Even if the activator works , it often does so while silently installing:
Avoid eBay $5 keys (many are stolen or will be deactivated). Instead, look for authorized resellers or use Microsoft’s official store. Alternatively, use Linux (Ubuntu, Fedora) or LibreOffice – completely free and powerful. kmspico password 12345 not working