How to make Windows XP genuine

[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\WPAevents]
"OOBETimer"=hex:40,07,00,00

%systemroot%\System32\oobe\msoobe.exe /a

BDGMY-QJYMD-YHPQ4-QRV3H-C4MRQ