It's about as safe as it gets when it comes to an illegal activation of Windows. The script is widely known and used en-masse. It' Reddit·r/WindowsOnDeck Windows 7: MAK to KMS - LSU GROK Knowledge Base
If you need Windows 7 but don’t have a valid license, consider these legitimate or low-risk options. windows 7 activation batch file
Microsoft provides Windows 10 LTSC (Long-Term Servicing Channel) with a 90-day trial and minimal telemetry. It runs well on older hardware and offers security updates until 2032. It's about as safe as it gets when
: Displays the current license information to verify if activation was successful. Example Batch Script Structure windows 7 activation batch file