1.Run the loader.
2.Install it on ur system reserved parition (else on windows parition)
3.reboot
4.slmgr -ilc C:\HPQOEMSLIC-MPC.XRM-MS
5.slngr -ipk 22TKD-F8XX6-YG69F-9M66D-PMJBM
Windows 7 Ultimate: 7YWX9-W3C2V-D46GW-P722P-9CP4D
Windows 7 Professional: VTDC3-WM7HP-XMPMX-K4YQ2-WYGJ8
Windows 7 Home Premium: V2HHT-47JXK-3YMXJ-9MCH3-RYQGW
Windows 7 Home Basic: BMDHM-HCRHH-JFBC8-9R8DT-YQB23r
Windows 7 Starter or Small Notebook: BQXR3-84D93-G2RK7-HDKH2-X938C
Enjoy
